diff --git a/src/pages/Dashboard/CompletionContent.tsx b/src/pages/Dashboard/CompletionContent.tsx
index 73fa7c3..a837980 100755
--- a/src/pages/Dashboard/CompletionContent.tsx
+++ b/src/pages/Dashboard/CompletionContent.tsx
@@ -45,6 +45,7 @@ const CompletionContent: React.FC<CompletionContentProps> = ({
 
   // 소셜 미디어 포스팅 모달
   const [showSocialModal, setShowSocialModal] = useState(false);
+  const [videoDbId, setVideoDbId] = useState<number | null>(null);
 
   // 저장된 완료 데이터
   const [songCompletionData, setSongCompletionData] = useState<{
@@ -203,6 +204,10 @@ const CompletionContent: React.FC<CompletionContentProps> = ({
 
       if (videoUrlFromResponse) {
         setVideoUrl(videoUrlFromResponse);
+        const videoId = statusResponse.render_data?.video_id;
+        if (videoId) {
+          setVideoDbId(videoId);
+        }
         setVideoStatus('complete');
         setStatusMessage('');
         saveToStorage(videoTaskId, currentSongTaskId, 'complete', videoUrlFromResponse);
@@ -515,8 +520,8 @@ const CompletionContent: React.FC<CompletionContentProps> = ({
         <SocialPostingModal
           isOpen={showSocialModal}
           onClose={handleCloseSocialConnect}
-          video={videoUrl ? {
-            video_id: 0,
+          video={videoUrl && videoDbId ? {
+            video_id: videoDbId,
             store_name: songCompletionData?.businessName || '',
             region: '',
             task_id: songTaskId || '',
diff --git a/src/types/api.ts b/src/types/api.ts
index 1e4042a..8febfcd 100644
--- a/src/types/api.ts
+++ b/src/types/api.ts
@@ -158,6 +158,7 @@ export interface VideoStatusResponse {
     status: string;
     url: string | null;
     snapshot_url: string | null;
+    video_id?: number;
   } | null;
   raw_response?: Record<string, unknown>;
   error_message: string | null;
diff --git a/src/utils/api.ts b/src/utils/api.ts
index 3062b4a..cf85190 100644
--- a/src/utils/api.ts
+++ b/src/utils/api.ts
@@ -301,6 +301,17 @@ export async function getVideosList(page: number = 1, pageSize: number = 10): Pr
   return response.json();
 }
 
+// task_id로 video_id 조회 (소셜 업로드용)
+export async function getVideoIdByTaskId(taskId: string): Promise<number | null> {
+  try {
+    const response = await getVideosList(1, 50);
+    const found = response.items.find(v => v.task_id === taskId);
+    return found?.video_id ?? null;
+  } catch {
+    return null;
+  }
+}
+
 // 비디오 삭제 API (개별 비디오 삭제)
 export async function deleteVideo(videoId: number): Promise<void> {
   const response = await authenticatedFetch(`${API_URL}/archive/videos/${videoId}`, {