diff --git a/components/canvas/nodes/ImageNode.tsx b/components/canvas/nodes/ImageNode.tsx
index f7b14d2b7..44f6116b0 100644
--- a/components/canvas/nodes/ImageNode.tsx
+++ b/components/canvas/nodes/ImageNode.tsx
@@ -1984,6 +1984,7 @@ export function ImageNode({
   const localEditPromptInputRefs = useRef<
     Record<string, HTMLInputElement | null>
   >({});
+  const localEditPromptDraftRefs = useRef<Record<string, string>>({});
 
   const updateNode = useCanvasStore((state) => state.updateNode);
   const deleteNode = useCanvasStore((state) => state.deleteNode);
@@ -2459,6 +2460,8 @@ export function ImageNode({
       const input = localEditPromptInputRefs.current[regionId];
       if (!input) return;
       input.focus({ preventScroll: true });
+      const cursorPosition = input.value.length;
+      input.setSelectionRange(cursorPosition, cursorPosition);
     });
   }, []);
 
@@ -2473,6 +2476,9 @@ export function ImageNode({
         regions.slice(0, LOCAL_EDIT_MAX_REGIONS)
       );
       setLocalEditRegions(nextRegions);
+      localEditPromptDraftRefs.current = Object.fromEntries(
+        nextRegions.map((region) => [region.id, region.prompt])
+      );
 
       const nextMetadata =
         data.metadata && typeof data.metadata === "object"
@@ -3417,21 +3423,9 @@ export function ImageNode({
     [localEditMode]
   );
 
-  const updateLocalEditRegionPrompt = useCallback(
-    (regionId: string, prompt: string) => {
-      setLocalEditRegions((prevRegions) =>
-        reindexLocalEditRegions(
-          prevRegions.map((region) =>
-            region.id === regionId ? { ...region, prompt } : region
-          )
-        )
-      );
-    },
-    []
-  );
-
   const persistLocalEditRegionPrompt = useCallback(
     (regionId: string, prompt: string) => {
+      localEditPromptDraftRefs.current[regionId] = prompt;
       commitLocalEditRegions(
         localEditRegions.map((region) =>
           region.id === regionId ? { ...region, prompt } : region
@@ -3443,6 +3437,7 @@ export function ImageNode({
 
   const deleteLocalEditRegion = useCallback(
     (regionId: string) => {
+      delete localEditPromptDraftRefs.current[regionId];
       commitLocalEditRegions(
         localEditRegions.filter((region) => region.id !== regionId)
       );
@@ -3454,6 +3449,7 @@ export function ImageNode({
   );
 
   const clearLocalEditRegions = useCallback(() => {
+    localEditPromptDraftRefs.current = {};
     commitLocalEditRegions([]);
     setEditingLocalEditRegionId(null);
   }, [commitLocalEditRegions]);
@@ -3475,7 +3471,9 @@ export function ImageNode({
     const validRegions = reindexLocalEditRegions(
       localEditRegions.map((region) => ({
         ...region,
-        prompt: region.prompt.trim(),
+        prompt: (
+          localEditPromptDraftRefs.current[region.id] ?? region.prompt
+        ).trim(),
       }))
     );
 
@@ -8159,33 +8157,32 @@ export function ImageNode({
                   className="nodrag nopan nowheel h-9 min-w-0 flex-1 rounded-full border border-slate-300 bg-white/95 px-3 text-[12px] font-medium text-slate-950 caret-slate-950 shadow-[0_10px_24px_rgba(15,23,42,0.14)] outline-none ring-2 ring-transparent transition placeholder:text-slate-400 focus:border-slate-950 focus:ring-slate-950/15 dark:border-white/20 dark:bg-slate-950/88 dark:text-white dark:caret-white dark:placeholder:text-white/42 dark:focus:border-white/40 dark:focus:ring-white/18"
                   data-canvas-no-drag="true"
                   data-local-edit-control="true"
-                  onBlur={(event) => {
-                    const relatedTarget =
-                      event.relatedTarget instanceof HTMLElement
-                        ? event.relatedTarget
-                        : null;
-                    const nextPrompt = event.currentTarget.value;
-                    if (nextPrompt.trim()) {
-                      persistLocalEditRegionPrompt(region.id, nextPrompt);
-                      setEditingLocalEditRegionId(null);
-                      return;
-                    }
-                    if (
-                      editingLocalEditRegionId === region.id &&
-                      !relatedTarget?.closest("[data-local-edit-control='true']")
-                    ) {
-                      focusLocalEditPromptInput(region.id);
-                    }
-                  }}
-                  onChange={(event) =>
-                    updateLocalEditRegionPrompt(region.id, event.target.value)
+                  defaultValue={
+                    localEditPromptDraftRefs.current[region.id] ?? region.prompt
                   }
-                  onClick={(event) => {
-                    event.stopPropagation();
-                    focusLocalEditPromptInput(region.id);
+                  onBlur={(event) => {
+                    const nextPrompt = event.currentTarget.value;
+                    localEditPromptDraftRefs.current[region.id] = nextPrompt;
+                    persistLocalEditRegionPrompt(region.id, nextPrompt);
+                    setEditingLocalEditRegionId(null);
+                  }}
+                  onClick={(event) => {
+                    event.nativeEvent.stopImmediatePropagation?.();
+                    event.stopPropagation();
+                    event.currentTarget.focus({ preventScroll: true });
+                  }}
+                  onFocus={(event) => {
+                    event.stopPropagation();
+                    setEditingLocalEditRegionId((current) =>
+                      current === region.id ? current : region.id
+                    );
+                  }}
+                  onInput={(event) => {
+                    localEditPromptDraftRefs.current[region.id] =
+                      event.currentTarget.value;
                   }}
-                  onFocus={() => setEditingLocalEditRegionId(region.id)}
                   onKeyDown={(event) => {
+                    event.nativeEvent.stopImmediatePropagation?.();
                     event.stopPropagation();
                     if (event.key === "Enter") {
                       event.preventDefault();
@@ -8204,19 +8201,32 @@ export function ImageNode({
                       setEditingLocalEditRegionId(null);
                     }
                   }}
-                  onKeyUp={(event) => event.stopPropagation()}
-                  onMouseDown={(event) => event.stopPropagation()}
-                  onMouseDownCapture={(event) => event.stopPropagation()}
-                  onPointerDown={(event) => event.stopPropagation()}
-                  onPointerDownCapture={(event) => {
+                  onKeyUp={(event) => {
+                    event.nativeEvent.stopImmediatePropagation?.();
                     event.stopPropagation();
-                    focusLocalEditPromptInput(region.id);
+                  }}
+                  onMouseDown={(event) => {
+                    event.nativeEvent.stopImmediatePropagation?.();
+                    event.stopPropagation();
+                  }}
+                  onMouseDownCapture={(event) => {
+                    event.nativeEvent.stopImmediatePropagation?.();
+                    event.stopPropagation();
+                    event.currentTarget.focus({ preventScroll: true });
+                  }}
+                  onPointerDown={(event) => {
+                    event.nativeEvent.stopImmediatePropagation?.();
+                    event.stopPropagation();
+                  }}
+                  onPointerDownCapture={(event) => {
+                    event.nativeEvent.stopImmediatePropagation?.();
+                    event.stopPropagation();
+                    event.currentTarget.focus({ preventScroll: true });
                   }}
                   placeholder={`区域 ${region.index} 提示词`}
                   ref={(input) => {
                     localEditPromptInputRefs.current[region.id] = input;
                   }}
-                  value={region.prompt}
                 />
               ) : (
                 <button
@@ -8286,8 +8296,7 @@ export function ImageNode({
               className="mr-1 inline-flex h-10 shrink-0 items-center gap-1.5 whitespace-nowrap rounded-xl bg-emerald-600 px-3 font-semibold text-[13px] text-white hover:bg-emerald-500 hover:text-white disabled:bg-slate-300 disabled:text-slate-500 dark:bg-emerald-500 dark:disabled:bg-slate-700 dark:disabled:text-slate-400 dark:hover:bg-emerald-400"
               disabled={
                 isSubmittingLocalEdit ||
-                localEditRegions.length === 0 ||
-                localEditRegions.some((region) => !region.prompt.trim())
+                localEditRegions.length === 0
               }
               onClick={() => void handleSubmitLocalEdit()}
               title="生成局部编辑结果"