diff --git a/app/api/organization/permission-groups/route.test.ts b/app/api/organization/permission-groups/route.test.ts
new file mode 100644
index 0000000..522eb94
--- /dev/null
+++ b/app/api/organization/permission-groups/route.test.ts
@@ -0,0 +1,80 @@
+/** @jest-environment node */
+
+import { getServerSession } from 'next-auth'
+import { prisma } from '@/lib/prisma'
+import { isSuperAdmin } from '@/lib/department-permission'
+import { savePermissionPackItems } from '@/lib/user-permission-inherit'
+
+jest.mock('next-auth', () => ({
+  getServerSession: jest.fn(),
+}))
+
+jest.mock('@/lib/auth', () => ({
+  authOptions: {},
+}))
+
+jest.mock('@/lib/prisma', () => ({
+  prisma: {
+    materialPermissionPack: {
+      findUnique: jest.fn(),
+    },
+  },
+}))
+
+jest.mock('@/lib/department-permission', () => ({
+  getAllMaterialTypes: jest.fn(),
+  isSuperAdmin: jest.fn(),
+}))
+
+jest.mock('@/lib/user-permission-inherit', () => ({
+  ensureDefaultPermissionPacks: jest.fn(),
+  packItemsToMap: jest.fn(),
+  savePermissionPackItems: jest.fn(),
+}))
+
+jest.mock('@/lib/permission-groups', () => ({
+  findConflictingDepartmentGroup: jest.fn(),
+  makePermissionGroupSlug: jest.fn(),
+  seedDefaultGroupDepartments: jest.fn(),
+}))
+
+const { PUT } = require('@/app/api/organization/permission-groups/route') as typeof import('@/app/api/organization/permission-groups/route')
+
+describe('/api/organization/permission-groups 保存权限', () => {
+  beforeEach(() => {
+    jest.clearAllMocks()
+    ;(getServerSession as jest.Mock).mockResolvedValue({ user: { id: 'super-admin' } })
+    ;(isSuperAdmin as jest.Mock).mockResolvedValue(true)
+    ;(prisma.materialPermissionPack.findUnique as jest.Mock).mockResolvedValue({
+      id: 'visual-pack',
+      slug: 'visual',
+      name: '视觉',
+    })
+  })
+
+  test('任务详情编辑图片勾选值应原样保存，不能回退为 false', async () => {
+    const response = await PUT({
+      json: async () => ({
+        action: 'save-pack',
+        slug: 'visual',
+        permissions: [
+          {
+            materialType: '任务-详情',
+            canView: true,
+            canDownload: true,
+            canDownloadSource: true,
+            canEditAssets: true,
+          },
+        ],
+      }),
+    } as never)
+
+    expect(response.status).toBe(200)
+    expect(savePermissionPackItems).toHaveBeenCalledWith('visual', [
+      expect.objectContaining({
+        materialType: '任务-详情',
+        canEditAssets: true,
+      }),
+    ])
+  })
+})
diff --git a/lib/__tests__/department-permission-roster.test.ts b/lib/__tests__/department-permission-roster.test.ts
index 9e5703c..c628da8 100644
--- a/lib/__tests__/department-permission-roster.test.ts
+++ b/lib/__tests__/department-permission-roster.test.ts
@@ -2,6 +2,7 @@
 
 import { canUserViewMaterial, getUserViewableMaterialTypes } from '@/lib/department-permission'
 import { prisma } from '@/lib/prisma'
+import { canUserEditTaskDetailAssets } from '@/lib/user-permission-inherit'
 
 jest.mock('@/lib/prisma', () => ({
   prisma: {
@@ -132,6 +133,46 @@ describe('roster material visibility', () => {
     ])
   })
 
+  test('部门权限组勾选任务详情编辑图片后，运行时读取该授权', async () => {
+    ;(prisma.userEmployeeBinding.findFirst as jest.Mock).mockResolvedValue({
+      employeeProfile: {
+        departmentPath: '江苏简尚品牌管理有限公司/品牌中心/空间视觉部',
+      },
+    })
+    ;(prisma.materialPermissionPackDepartment.findMany as jest.Mock).mockResolvedValue([
+      {
+        departmentPath: '江苏简尚品牌管理有限公司/品牌中心',
+        pack: {
+          items: [
+            {
+              materialType: '任务-详情',
+              canView: true,
+              canDownload: true,
+              canDownloadSource: true,
+              canShare: true,
+              canEditAssets: true,
+            },
+          ],
+        },
+      },
+    ])
+
+    await expect(canUserEditTaskDetailAssets('visual-department-member')).resolves.toBe(true)
+    expect(prisma.materialPermissionPackDepartment.findMany).toHaveBeenCalledWith(
+      expect.objectContaining({
+        select: expect.objectContaining({
+          pack: {
+            select: {
+              items: {
+                select: expect.objectContaining({ canEditAssets: true }),
+              },
+            },
+          },
+        }),
+      }),
+    )
+  })
+
   test('人进多组时，各组能看的取并集', async () => {
     ;(prisma.userEmployeeBinding.findFirst as jest.Mock).mockResolvedValue({
       employeeProfile: {
diff --git a/lib/permission-groups.ts b/lib/permission-groups.ts
index 9e831fb..f3be4c0 100644
--- a/lib/permission-groups.ts
+++ b/lib/permission-groups.ts
@@ -22,6 +22,7 @@ const PACK_ITEM_SELECT = {
   canDownload: true,
   canDownloadSource: true,
   canShare: true,
+  canEditAssets: true,
 } as const
 
 function packTargetDepartment(slug: string): string | null {