diff --git a/app/(admin)/settings/admin-settings-client.tsx b/app/(admin)/settings/admin-settings-client.tsx
index 23c2212..122553b 100644
--- a/app/(admin)/settings/admin-settings-client.tsx
+++ b/app/(admin)/settings/admin-settings-client.tsx
@@ -144,11 +144,20 @@ type NavLink = {
   isEnabled: boolean;
 };
 
+type DingTalkOrganization = {
+  id: string;
+  name: string;
+  appKey: string;
+  appSecret: string;
+};
+
 type AuthSettings = {
-  dingTalkAppKey: string | null;
-  dingTalkAppSecret: string | null;
+  // 保留单一配置用于兼容旧数据（后端会自动同步为第一个组织）
+  dingTalkAppKey?: string | null;
+  dingTalkAppSecret?: string | null;
   isDingTalkEnabled: boolean;
   isRegistrationEnabled?: boolean;
+  dingTalkOrganizations: DingTalkOrganization[];
 };
 
 type GeneratedImageRecord = {
@@ -266,7 +275,10 @@ export function AdminSettingsClient() {
   const { data: storageData, mutate: mutateStorage } = useSWR<{ configs: StorageConfig[] }>("/api/admin/storage", fetcher);
   const { data: siteSettingsData, mutate: mutateSiteSettings } = useSWR<SiteSettings>("/api/site-settings", fetcher);
   const { data: navLinksData, mutate: mutateNavLinks } = useSWR<{ links: NavLink[] }>("/api/nav-links", fetcher);
-  const { data: authSettingsData, mutate: mutateAuthSettings } = useSWR<AuthSettings>("/api/auth-settings", fetcher);
+  const { data: authSettingsData, mutate: mutateAuthSettings } = useSWR<any>(
+    "/api/auth-settings",
+    fetcher,
+  );
 
   // 🆕 生图记录数据
   const imageQueryParams = new URLSearchParams({
@@ -406,17 +418,36 @@ export function AdminSettingsClient() {
     dingTalkAppSecret: "",
     isDingTalkEnabled: false,
     isRegistrationEnabled: true,
+    dingTalkOrganizations: [],
   });
 
   useEffect(() => {
-    if (authSettingsData) {
-      setAuthSettings({
-        dingTalkAppKey: authSettingsData.dingTalkAppKey || "",
-        dingTalkAppSecret: authSettingsData.dingTalkAppSecret || "",
-        isDingTalkEnabled: authSettingsData.isDingTalkEnabled || false,
-        isRegistrationEnabled: authSettingsData.isRegistrationEnabled ?? true,
-      });
-    }
+    if (!authSettingsData) return;
+
+    const organizations: DingTalkOrganization[] =
+      (authSettingsData.dingTalkOrganizations as DingTalkOrganization[] | null) ?? [];
+
+    // 如果没有多组织配置，但有单一 AppKey/Secret，则自动构造一个默认组织
+    const normalizedOrgs =
+      organizations.length > 0 ||
+      !authSettingsData.dingTalkAppKey
+        ? organizations
+        : [
+            {
+              id: "default",
+              name: "默认组织",
+              appKey: authSettingsData.dingTalkAppKey ?? "",
+              appSecret: authSettingsData.dingTalkAppSecret ?? "",
+            },
+          ];
+
+    setAuthSettings({
+      dingTalkAppKey: authSettingsData.dingTalkAppKey || "",
+      dingTalkAppSecret: authSettingsData.dingTalkAppSecret || "",
+      isDingTalkEnabled: authSettingsData.isDingTalkEnabled || false,
+      isRegistrationEnabled: authSettingsData.isRegistrationEnabled ?? true,
+      dingTalkOrganizations: normalizedOrgs,
+    });
   }, [authSettingsData]);
 
   // AI 提供商 & 模型状态
@@ -2066,25 +2097,125 @@ export function AdminSettingsClient() {
               <Separator />
               <div className="space-y-4">
                 <h3 className="text-lg font-semibold">钉钉登录</h3>
-              <div className="space-y-2">
-                  <Label htmlFor="dingTalkAppKey">AppKey</Label>
-                <Input
-                    id="dingTalkAppKey"
-                    value={authSettings.dingTalkAppKey || ""}
-                    onChange={(e) => setAuthSettings({ ...authSettings, dingTalkAppKey: e.target.value })}
-                    type="password"
-                />
-              </div>
-                <div className="space-y-2">
-                  <Label htmlFor="dingTalkAppSecret">AppSecret</Label>
-                  <Input
-                    id="dingTalkAppSecret"
-                    value={authSettings.dingTalkAppSecret || ""}
-                    onChange={(e) => setAuthSettings({ ...authSettings, dingTalkAppSecret: e.target.value })}
-                    type="password"
-                  />
+                <p className="text-sm text-muted-foreground">
+                  支持配置多个钉钉组织，每个组织包含名称、AppKey、AppSecret。默认使用第一个组织作为登录入口。
+                </p>
+
+                <div className="space-y-3">
+                  {authSettings.dingTalkOrganizations.map((org, index) => (
+                    <div
+                      key={org.id}
+                      className="grid grid-cols-1 gap-3 rounded-md border p-3 md:grid-cols-3"
+                    >
+                      <div className="space-y-1">
+                        <Label htmlFor={`ding-org-name-${index}`}>组织名称</Label>
+                        <Input
+                          id={`ding-org-name-${index}`}
+                          value={org.name}
+                          placeholder={`例如：总部 / 研发中心 ${index + 1}`}
+                          onChange={(e) => {
+                            const value = e.target.value;
+                            setAuthSettings({
+                              ...authSettings,
+                              dingTalkOrganizations:
+                                authSettings.dingTalkOrganizations.map(
+                                  (item, i) =>
+                                    i === index ? { ...item, name: value } : item,
+                                ),
+                            });
+                          }}
+                        />
+                      </div>
+                      <div className="space-y-1">
+                        <Label htmlFor={`ding-org-appkey-${index}`}>AppKey</Label>
+                        <Input
+                          id={`ding-org-appkey-${index}`}
+                          type="password"
+                          value={org.appKey}
+                          onChange={(e) => {
+                            const value = e.target.value;
+                            setAuthSettings({
+                              ...authSettings,
+                              dingTalkOrganizations:
+                                authSettings.dingTalkOrganizations.map(
+                                  (item, i) =>
+                                    i === index ? { ...item, appKey: value } : item,
+                                ),
+                            });
+                          }}
+                        />
+                      </div>
+                      <div className="space-y-1">
+                        <Label htmlFor={`ding-org-appsecret-${index}`}>
+                          AppSecret
+                        </Label>
+                        <div className="flex items-center gap-2">
+                          <Input
+                            id={`ding-org-appsecret-${index}`}
+                            type="password"
+                            value={org.appSecret}
+                            onChange={(e) => {
+                              const value = e.target.value;
+                              setAuthSettings({
+                                ...authSettings,
+                                dingTalkOrganizations:
+                                  authSettings.dingTalkOrganizations.map(
+                                    (item, i) =>
+                                      i === index
+                                        ? { ...item, appSecret: value }
+                                        : item,
+                                  ),
+                              });
+                            }}
+                          />
+                          <Button
+                            type="button"
+                            variant="ghost"
+                            size="icon"
+                            className="shrink-0"
+                            onClick={() => {
+                              setAuthSettings({
+                                ...authSettings,
+                                dingTalkOrganizations:
+                                  authSettings.dingTalkOrganizations.filter(
+                                    (_, i) => i !== index,
+                                  ),
+                              });
+                            }}
+                            disabled={authSettings.dingTalkOrganizations.length <= 1}
+                          >
+                            <Trash2 className="h-4 w-4 text-muted-foreground" />
+                          </Button>
+                        </div>
+                      </div>
+                    </div>
+                  ))}
+
+                  <Button
+                    type="button"
+                    variant="outline"
+                    className="w-full md:w-auto"
+                    onClick={() => {
+                      setAuthSettings({
+                        ...authSettings,
+                        dingTalkOrganizations: [
+                          ...authSettings.dingTalkOrganizations,
+                          {
+                            id: crypto.randomUUID(),
+                            name: `新组织 ${authSettings.dingTalkOrganizations.length + 1}`,
+                            appKey: "",
+                            appSecret: "",
+                          },
+                        ],
+                      });
+                    }}
+                  >
+                    <Plus className="mr-2 h-4 w-4" />
+                    新增组织
+                  </Button>
                 </div>
-                <div className="flex items-center gap-2">
+
+                <div className="flex items-center gap-2 pt-2">
                   <Switch
                     id="dingTalkEnabled"
                     checked={authSettings.isDingTalkEnabled}
diff --git a/app/(auth)/login/page.tsx b/app/(auth)/login/page.tsx
index 2686e03..a210abb 100644
--- a/app/(auth)/login/page.tsx
+++ b/app/(auth)/login/page.tsx
@@ -29,9 +29,11 @@ export default function Page() {
   const [siteLogoDark, setSiteLogoDark] = useState<string | null>(null);
   const [isDingTalkEnabled, setIsDingTalkEnabled] = useState(false);
   const [dingTalkAppKey, setDingTalkAppKey] = useState<string | null>(null);
+  const [dingTalkOrganizations, setDingTalkOrganizations] = useState<string[]>([]);
   const [isRegistrationEnabled, setIsRegistrationEnabled] = useState(true);
   const [showDingTalkModal, setShowDingTalkModal] = useState(false);
   const [dingTalkIframeSrc, setDingTalkIframeSrc] = useState("");
+  const [showOrgMenu, setShowOrgMenu] = useState(false);
   const { setTheme, resolvedTheme } = useTheme();
   const [mounted, setMounted] = useState(false);
   const [isHandlingToken, setIsHandlingToken] = useState(false);
@@ -204,7 +206,16 @@ export default function Page() {
       .then((data) => {
         if (data.isDingTalkEnabled) setIsDingTalkEnabled(true);
         if (data.dingTalkAppKey) setDingTalkAppKey(data.dingTalkAppKey);
-        if (data.isRegistrationEnabled !== undefined) setIsRegistrationEnabled(data.isRegistrationEnabled);
+        if (Array.isArray(data.organizations)) {
+          setDingTalkOrganizations(
+            data.organizations
+              .map((org: { name?: string }) => org.name)
+              .filter((name: string | undefined): name is string => !!name),
+          );
+        }
+        if (data.isRegistrationEnabled !== undefined) {
+          setIsRegistrationEnabled(data.isRegistrationEnabled);
+        }
       })
       .catch(console.error);
   }, []);
@@ -269,37 +280,88 @@ export default function Page() {
     formAction(formData);
   };
 
-  // 钉钉登录 - 严格按照钉钉配置文档实现
+  // 根据组织名称启动钉钉登录（在 iframe 中打开）
+  const startDingTalkLoginForOrg = (orgName: string) => {
+    // 清除 URL 中的 token 参数，避免干扰
+    if (
+      typeof window !== "undefined" &&
+      window.location.search.includes("dingtalk_token")
+    ) {
+      const newUrl = window.location.pathname;
+      window.history.replaceState({}, "", newUrl);
+    }
+
+    const loginUrl = `/api/auth/dingtalk/login?org=${encodeURIComponent(
+      orgName,
+    )}`;
+
+    console.log("[DingTalk] Opening org login:", orgName, loginUrl);
+    setDingTalkIframeSrc(loginUrl);
+    setShowDingTalkModal(true);
+    setShowOrgMenu(false);
+  };
+
+  // 钉钉登录 - 支持多组织
   const handleDingTalkLogin = () => {
-    if (!dingTalkAppKey) {
-      toast({ type: "error", description: "钉钉登录未正确配置" });
+    if (!isDingTalkEnabled) {
+      toast({ type: "error", description: "钉钉登录未启用" });
       return;
     }
 
-    // 清除 URL 中的 token 参数，避免干扰
-    if (typeof window !== 'undefined' && window.location.search.includes('dingtalk_token')) {
-      const newUrl = window.location.pathname;
-      window.history.replaceState({}, '', newUrl);
+    // 没有配置多组织：回退到单一 appKey 流程
+    if (dingTalkOrganizations.length === 0) {
+      if (!dingTalkAppKey) {
+        toast({ type: "error", description: "钉钉登录未正确配置" });
+        return;
+      }
+
+      // 兼容：直接使用旧的方式在 iframe 中打开
+      if (
+        typeof window === "undefined" ||
+        typeof window.location === "undefined"
+      ) {
+        toast({ type: "error", description: "当前环境不支持钉钉登录" });
+        return;
+      }
+
+      // 清除 URL 中的 token 参数，避免干扰
+      if (window.location.search.includes("dingtalk_token")) {
+        const newUrl = window.location.pathname;
+        window.history.replaceState({}, "", newUrl);
+      }
+
+      const param = {
+        redirect_uri: encodeURIComponent(
+          window.location.origin + "/dingtalk-callback.html",
+        ),
+        client_id: dingTalkAppKey,
+        scope: "openid",
+        response_type: "code",
+        state: "default",
+        prompt: "consent",
+      };
+
+      const redirectUrl =
+        "https://login.dingtalk.com/oauth2/auth?" +
+        Object.keys(param)
+          .map((key) => key + "=" + (param as any)[key])
+          .join("&");
+
+      console.log("[DingTalk] Opening OAuth URL (legacy):", redirectUrl);
+
+      setDingTalkIframeSrc(redirectUrl);
+      setShowDingTalkModal(true);
+      return;
     }
 
-    // 构建钉钉 OAuth2 授权 URL
-    const param = {
-      redirect_uri: encodeURIComponent(window.location.origin + "/dingtalk-callback.html"),
-      client_id: dingTalkAppKey,
-      scope: "openid",
-      response_type: "code",
-      state: "default",
-      prompt: "consent"
-    };
-    
-    const redirectUrl = "https://login.dingtalk.com/oauth2/auth?" +
-      Object.keys(param).map(key => key + "=" + param[key as keyof typeof param]).join("&");
-    
-    console.log("[DingTalk] Opening OAuth URL:", redirectUrl);
-    
-    // 在 iframe 中打开钉钉登录页面
-    setDingTalkIframeSrc(redirectUrl);
-    setShowDingTalkModal(true);
+    // 只有一个组织：直接使用该组织登录
+    if (dingTalkOrganizations.length === 1) {
+      startDingTalkLoginForOrg(dingTalkOrganizations[0] as string);
+      return;
+    }
+
+    // 多组织：点击时展开/收起选择菜单（hover 时也会展开）
+    setShowOrgMenu((prev) => !prev);
   };
 
   // 关闭钉钉登录弹窗
@@ -347,8 +409,8 @@ export default function Page() {
         <AuthForm action={handleSubmit} defaultEmail={email} className="pointer-events-auto">
           <SubmitButton isSuccessful={isSuccessful}>登录</SubmitButton>
           
-          {isDingTalkEnabled && dingTalkAppKey && (
-            <div className="mt-4 w-full">
+          {isDingTalkEnabled && (dingTalkAppKey || dingTalkOrganizations.length > 0) && (
+            <div className="mt-4 w-full relative">
               <div className="relative mb-4">
                 <div className="absolute inset-0 flex items-center">
                   <span className="w-full border-t" />
@@ -372,6 +434,22 @@ export default function Page() {
                 </svg>
                 钉钉登录
               </button>
+
+              {/* 多组织下的小型选择框（悬浮在按钮附近） */}
+              {dingTalkOrganizations.length > 1 && showOrgMenu && (
+                <div className="absolute left-0 right-0 -top-2 -translate-y-full rounded-md border bg-background shadow-lg z-20 max-h-60 overflow-auto text-sm">
+                  {dingTalkOrganizations.map((org) => (
+                    <button
+                      key={org}
+                      type="button"
+                      onClick={() => startDingTalkLoginForOrg(org)}
+                      className="flex w-full items-center justify-between px-3 py-2 text-left hover:bg-muted"
+                    >
+                      <span>{org}</span>
+                    </button>
+                  ))}
+                </div>
+              )}
             </div>
           )}
 
@@ -390,9 +468,9 @@ export default function Page() {
         </AuthForm>
       </div>
 
-      {/* 钉钉登录 iframe 弹窗 */}
+      {/* 钉钉登录 iframe 弹窗 / 多组织选择 */}
       {showDingTalkModal && (
-        <div 
+        <div
           className="fixed inset-0 bg-black/80 flex items-center justify-center z-50 backdrop-blur-sm"
           onClick={(e) => {
             if (e.target === e.currentTarget) closeDingTalkModal();
@@ -400,20 +478,61 @@ export default function Page() {
         >
           <div className="w-[90%] max-w-[500px] h-[720px] bg-white dark:bg-zinc-900 rounded-xl overflow-hidden flex flex-col shadow-2xl">
             <div className="flex justify-between items-center p-4 bg-gray-50 dark:bg-zinc-800 border-b dark:border-zinc-700">
-              <h3 className="text-lg font-semibold text-gray-900 dark:text-white">钉钉登录</h3>
-              <button 
+              <h3 className="text-lg font-semibold text-gray-900 dark:text-white">
+                钉钉登录
+              </h3>
+              <button
                 onClick={closeDingTalkModal}
                 className="p-2 hover:bg-gray-200 dark:hover:bg-zinc-700 rounded-lg transition-colors"
               >
                 <X className="w-5 h-5 text-gray-500 dark:text-gray-400" />
               </button>
             </div>
-            <iframe
-              ref={iframeRef}
-              src={dingTalkIframeSrc}
-              className="flex-1 w-full border-0"
-              title="钉钉登录"
-            />
+
+            {/* 多组织选择 */}
+            {dingTalkOrganizations.length > 1 && !dingTalkIframeSrc && (
+              <div className="p-4 space-y-3">
+                <p className="text-sm text-muted-foreground">
+                  请选择要使用的钉钉组织进行登录：
+                </p>
+                <div className="space-y-2">
+                  {dingTalkOrganizations.map((org) => (
+                    <button
+                      key={org}
+                      type="button"
+                      onClick={() => {
+                        const loginUrl = `/api/auth/dingtalk/login?org=${encodeURIComponent(
+                          org,
+                        )}`;
+                        console.log(
+                          "[DingTalk] Selected organization:",
+                          org,
+                          loginUrl,
+                        );
+                        setDingTalkIframeSrc(loginUrl);
+                      }}
+                      className="flex w-full items-center justify-between rounded-md border bg-white px-4 py-2 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50 dark:bg-zinc-900 dark:text-zinc-200 dark:hover:bg-zinc-800"
+                    >
+                      <span>{org}</span>
+                    </button>
+                  ))}
+                </div>
+                <p className="text-xs text-muted-foreground">
+                  选择后将在下方加载钉钉登录页面。
+                </p>
+              </div>
+            )}
+
+            {/* 登录 iframe */}
+            {dingTalkIframeSrc && (
+              <iframe
+                ref={iframeRef}
+                src={dingTalkIframeSrc}
+                className="flex-1 w-full border-0"
+                title="钉钉登录"
+              />
+            )}
+
             <div className="p-4 bg-gray-50 dark:bg-zinc-800 border-t dark:border-zinc-700 flex justify-center">
               <button
                 onClick={closeDingTalkModal}
diff --git a/app/api/auth-settings/route.ts b/app/api/auth-settings/route.ts
index af2d33e..e003967 100644
--- a/app/api/auth-settings/route.ts
+++ b/app/api/auth-settings/route.ts
@@ -18,22 +18,32 @@ export async function GET() {
       return NextResponse.json({
         dingTalkAppKey: "",
         dingTalkAppSecret: "", // 即使是空的，非管理员也不应该看到这个字段名，但因为是空字符串，问题不大
+        dingTalkOrganizations: [],
         isDingTalkEnabled: false,
         isRegistrationEnabled: true,
       });
     }
     
     if (isAdmin) {
-      return NextResponse.json(settings);
-    } else {
-      // 非管理员，脱敏返回
       return NextResponse.json({
-        dingTalkAppKey: settings.dingTalkAppKey,
-        isDingTalkEnabled: settings.isDingTalkEnabled,
-        isRegistrationEnabled: settings.isRegistrationEnabled,
-        // 不返回 dingTalkAppSecret
+        ...settings,
+        dingTalkOrganizations: settings.dingTalkOrganizations ?? [],
       });
     }
+
+    // 非管理员，脱敏返回，只暴露组织名称
+    const organizations =
+      settings.dingTalkOrganizations?.map((org) => ({
+        name: org.name,
+      })) ?? [];
+
+    return NextResponse.json({
+      dingTalkAppKey: settings.dingTalkAppKey,
+      isDingTalkEnabled: settings.isDingTalkEnabled,
+      isRegistrationEnabled: settings.isRegistrationEnabled,
+      organizations,
+      // 不返回 dingTalkAppSecret 以及各组织的密钥
+    });
   } catch (error) {
     console.error("[Auth Settings API] Get error:", error);
     return NextResponse.json(
@@ -43,9 +53,16 @@ export async function GET() {
   }
 }
 
+const orgSchema = z.object({
+  name: z.string().min(1),
+  appKey: z.string().min(1),
+  appSecret: z.string().min(1),
+});
+
 const updateSchema = z.object({
   dingTalkAppKey: z.string().optional(),
   dingTalkAppSecret: z.string().optional(),
+  dingTalkOrganizations: z.array(orgSchema).optional(),
   isDingTalkEnabled: z.boolean().optional(),
   isRegistrationEnabled: z.boolean().optional(),
 });
@@ -68,35 +85,52 @@ export async function PUT(request: NextRequest) {
     
     // 查找现有配置
     const [existing] = await db.select().from(authSettings).limit(1);
-    
+
+    const organizations = data.dingTalkOrganizations ?? existing?.dingTalkOrganizations ?? [];
+    const primaryOrg = organizations[0] as
+      | { name: string; appKey: string; appSecret: string }
+      | undefined;
+
+    const resolvedAppKey =
+      data.dingTalkAppKey ?? primaryOrg?.appKey ?? existing?.dingTalkAppKey ?? null;
+    const resolvedAppSecret =
+      data.dingTalkAppSecret ?? primaryOrg?.appSecret ?? existing?.dingTalkAppSecret ?? null;
+
     if (existing) {
       // 更新现有配置
       const [updated] = await db
         .update(authSettings)
         .set({
-          ...data,
+          dingTalkAppKey: resolvedAppKey,
+          dingTalkAppSecret: resolvedAppSecret,
+          dingTalkOrganizations: organizations,
+          isDingTalkEnabled:
+            data.isDingTalkEnabled ?? existing.isDingTalkEnabled,
+          isRegistrationEnabled:
+            data.isRegistrationEnabled ?? existing.isRegistrationEnabled,
           updatedAt: new Date(),
           updatedBy: session.user.id,
         })
         .where(eq(authSettings.id, existing.id))
         .returning();
-      
+
       return NextResponse.json(updated);
-    } else {
-      // 创建新配置
-      const [created] = await db
-        .insert(authSettings)
-        .values({
-          dingTalkAppKey: data.dingTalkAppKey,
-          dingTalkAppSecret: data.dingTalkAppSecret,
-          isDingTalkEnabled: data.isDingTalkEnabled || false,
-          isRegistrationEnabled: data.isRegistrationEnabled ?? true,
-          updatedBy: session.user.id,
-        })
-        .returning();
-      
-      return NextResponse.json(created);
     }
+
+    // 创建新配置
+    const [created] = await db
+      .insert(authSettings)
+      .values({
+        dingTalkAppKey: resolvedAppKey,
+        dingTalkAppSecret: resolvedAppSecret,
+        dingTalkOrganizations: organizations,
+        isDingTalkEnabled: data.isDingTalkEnabled || false,
+        isRegistrationEnabled: data.isRegistrationEnabled ?? true,
+        updatedBy: session.user.id,
+      })
+      .returning();
+
+    return NextResponse.json(created);
   } catch (error) {
     console.error("[Auth Settings API] Update error:", error);
     
diff --git a/app/api/auth/dingtalk/callback/route.ts b/app/api/auth/dingtalk/callback/route.ts
index de7390e..58c9fdb 100644
--- a/app/api/auth/dingtalk/callback/route.ts
+++ b/app/api/auth/dingtalk/callback/route.ts
@@ -11,30 +11,56 @@ export async function GET(request: NextRequest) {
   const code = searchParams.get("code");
   const state = searchParams.get("state");
 
-  console.log("[DingTalk Callback] Received code:", code?.substring(0, 10) + "...", "state:", state);
+  console.log(
+    "[DingTalk Callback] Received code:",
+    code?.substring(0, 10) + "...",
+    "state:",
+    state,
+  );
 
   if (!code) {
     return NextResponse.json({ success: false, error: "Missing code" }, { status: 400 });
   }
 
   const settings = await getAuthSettings();
-  if (!settings.isDingTalkEnabled || !settings.dingTalkAppKey || !settings.dingTalkAppSecret) {
-    return NextResponse.json({ success: false, error: "DingTalk login is not configured" }, { status: 400 });
+  if (!settings.isDingTalkEnabled) {
+    return NextResponse.json(
+      { success: false, error: "DingTalk login is not configured" },
+      { status: 400 },
+    );
+  }
+
+  const organizations = settings.dingTalkOrganizations ?? [];
+  const selectedOrg = state
+    ? organizations.find((org) => org.name === state)
+    : organizations[0];
+
+  const appKey = selectedOrg?.appKey ?? settings.dingTalkAppKey;
+  const appSecret = selectedOrg?.appSecret ?? settings.dingTalkAppSecret;
+
+  if (!appKey || !appSecret) {
+    return NextResponse.json(
+      { success: false, error: "DingTalk appKey/appSecret is not configured" },
+      { status: 400 },
+    );
   }
 
   try {
     // 1. 获取 userAccessToken
     console.log("[DingTalk Callback] Getting user access token...");
-    const tokenResponse = await fetch("https://api.dingtalk.com/v1.0/oauth2/userAccessToken", {
-      method: "POST",
-      headers: { "Content-Type": "application/json" },
-      body: JSON.stringify({
-        clientId: settings.dingTalkAppKey,
-        clientSecret: settings.dingTalkAppSecret,
-        code,
-        grantType: "authorization_code",
-      }),
-    });
+    const tokenResponse = await fetch(
+      "https://api.dingtalk.com/v1.0/oauth2/userAccessToken",
+      {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+          clientId: appKey,
+          clientSecret: appSecret,
+          code,
+          grantType: "authorization_code",
+        }),
+      },
+    );
 
     const tokenData = await tokenResponse.json();
     console.log("[DingTalk Callback] Token response:", tokenData.accessToken ? "success" : "failed");
@@ -62,7 +88,11 @@ export async function GET(request: NextRequest) {
 
     // 3. 获取应用访问令牌 (用于获取更详细的用户信息)
     console.log("[DingTalk Callback] Getting app access token...");
-    const appTokenResponse = await fetch(`https://oapi.dingtalk.com/gettoken?appkey=${settings.dingTalkAppKey}&appsecret=${settings.dingTalkAppSecret}`);
+    const appTokenResponse = await fetch(
+      `https://oapi.dingtalk.com/gettoken?appkey=${encodeURIComponent(
+        appKey,
+      )}&appsecret=${encodeURIComponent(appSecret)}`,
+    );
     const appTokenData = await appTokenResponse.json();
     
     if (!appTokenData.access_token) {
diff --git a/app/api/auth/dingtalk/login/route.ts b/app/api/auth/dingtalk/login/route.ts
index aad57ba..6e38f19 100644
--- a/app/api/auth/dingtalk/login/route.ts
+++ b/app/api/auth/dingtalk/login/route.ts
@@ -3,9 +3,29 @@ import { getAuthSettings } from "@/lib/db/queries";
 
 export async function GET(request: Request) {
   const settings = await getAuthSettings();
-  
-  if (!settings.isDingTalkEnabled || !settings.dingTalkAppKey) {
-    return NextResponse.json({ error: "DingTalk login is not enabled" }, { status: 400 });
+
+  if (!settings.isDingTalkEnabled) {
+    return NextResponse.json(
+      { error: "DingTalk login is not enabled" },
+      { status: 400 },
+    );
+  }
+
+  const urlObj = new URL(request.url);
+  const orgName = urlObj.searchParams.get("org");
+  const organizations = settings.dingTalkOrganizations ?? [];
+
+  const selectedOrg = orgName
+    ? organizations.find((org) => org.name === orgName)
+    : organizations[0];
+
+  const appKey = selectedOrg?.appKey ?? settings.dingTalkAppKey;
+
+  if (!appKey) {
+    return NextResponse.json(
+      { error: "DingTalk appKey is not configured" },
+      { status: 400 },
+    );
   }
 
   // 动态构建回调地址
@@ -13,16 +33,18 @@ export async function GET(request: Request) {
   const protocol = request.headers.get("x-forwarded-proto") || "http";
   const baseUrl = `${protocol}://${host}`;
   const redirectUri = `${baseUrl}/dingtalk-callback.html`;
-  
-  const state = Math.random().toString(36).substring(7);
-  
+
+  // 使用组织名称作为 state，便于回调时选择对应的配置
+  const state = orgName || selectedOrg?.name || "default";
+
   // 钉钉 OAuth 2.0 授权地址
-  const url = `https://login.dingtalk.com/oauth2/auth?` +
+  const url =
+    `https://login.dingtalk.com/oauth2/auth?` +
     `redirect_uri=${encodeURIComponent(redirectUri)}&` +
     `response_type=code&` +
-    `client_id=${settings.dingTalkAppKey}&` +
+    `client_id=${encodeURIComponent(appKey)}&` +
     `scope=openid&` +
-    `state=${state}&` +
+    `state=${encodeURIComponent(state)}&` +
     `prompt=consent`;
 
   return NextResponse.redirect(url);
diff --git a/lib/db/migrations/0025_add_dingtalk_organizations.sql b/lib/db/migrations/0025_add_dingtalk_organizations.sql
new file mode 100644
index 0000000..000c7b1
--- /dev/null
+++ b/lib/db/migrations/0025_add_dingtalk_organizations.sql
@@ -0,0 +1,9 @@
+-- 迁移文件：0025_add_dingtalk_organizations.sql
+-- 功能：为 AuthSettings 添加多组织钉钉配置字段
+
+ALTER TABLE "AuthSettings"
+ADD COLUMN IF NOT EXISTS "dingTalkOrganizations" jsonb DEFAULT '[]'::jsonb;
+
+COMMENT ON COLUMN "AuthSettings"."dingTalkOrganizations" IS '钉钉多组织配置，JSON 数组：[{ name, appKey, appSecret }]';
+
+
diff --git a/lib/db/queries.ts b/lib/db/queries.ts
index b1a351f..9252d63 100644
--- a/lib/db/queries.ts
+++ b/lib/db/queries.ts
@@ -1499,9 +1499,29 @@ export async function getNavLinks() {
 export async function getAuthSettings() {
   try {
     const [settings] = await db.select().from(authSettings).limit(1);
-    return settings || { dingTalkAppKey: "", dingTalkAppSecret: "", isDingTalkEnabled: false, isRegistrationEnabled: true };
+
+    if (settings) {
+      return {
+        ...settings,
+        dingTalkOrganizations: settings.dingTalkOrganizations ?? [],
+      };
+    }
+
+    return {
+      dingTalkAppKey: "",
+      dingTalkAppSecret: "",
+      dingTalkOrganizations: [],
+      isDingTalkEnabled: false,
+      isRegistrationEnabled: true,
+    };
   } catch (_error) {
-    return { dingTalkAppKey: "", dingTalkAppSecret: "", isDingTalkEnabled: false, isRegistrationEnabled: true };
+    return {
+      dingTalkAppKey: "",
+      dingTalkAppSecret: "",
+      dingTalkOrganizations: [],
+      isDingTalkEnabled: false,
+      isRegistrationEnabled: true,
+    };
   }
 }
 
diff --git a/lib/db/schema.ts b/lib/db/schema.ts
index aaa4722..c181006 100644
--- a/lib/db/schema.ts
+++ b/lib/db/schema.ts
@@ -311,6 +311,10 @@ export const authSettings = pgTable("AuthSettings", {
   id: uuid("id").primaryKey().notNull().defaultRandom(),
   dingTalkAppKey: text("dingTalkAppKey"),
   dingTalkAppSecret: text("dingTalkAppSecret"),
+  // 多组织钉钉配置，存储为 JSON 数组：[{ name, appKey, appSecret }]
+  dingTalkOrganizations: jsonb("dingTalkOrganizations").$type<
+    { name: string; appKey: string; appSecret: string }[] | null
+  >(),
   isDingTalkEnabled: boolean("isDingTalkEnabled").notNull().default(false),
   isRegistrationEnabled: boolean("isRegistrationEnabled").notNull().default(true),
   updatedAt: timestamp("updatedAt").notNull().defaultNow(),