diff --git a/src/components/SocialPostingModal.tsx b/src/components/SocialPostingModal.tsx
index 501c977..50e8cd8 100644
--- a/src/components/SocialPostingModal.tsx
+++ b/src/components/SocialPostingModal.tsx
@@ -142,10 +142,7 @@ const SocialPostingModal: React.FC<SocialPostingModalProps> = ({
   const channelDropdownRef = useRef<HTMLDivElement>(null);
   const privacyDropdownRef = useRef<HTMLDivElement>(null);
   const hasBeenOpenedRef = useRef(false);
-  const loadedForTaskIdRef = useRef<string | null>(null);
-  const loadedAtRef = useRef<number>(0);
-  const seoCache = useRef<Map<string, { title: string; description: string; tags: string }>>(new Map());
-  const SEO_CACHE_TTL = 50 * 60 * 1000;
+  const loadedForVideoIdRef = useRef<number | null>(null);
 
   // Upload progress modal state
   const [showUploadProgress, setShowUploadProgress] = useState(false);
@@ -212,28 +209,30 @@ const SocialPostingModal: React.FC<SocialPostingModalProps> = ({
 
   // 소셜 계정 로드
   useEffect(() => {
-    if (!isOpen) return;
-
-    const now = Date.now();
+    if (!isOpen) {
+      loadedForVideoIdRef.current = null;
+      return;
+    }
 
     loadSocialAccounts();
 
-    const taskId = video?.task_id ?? null;
-    const expired = now - loadedAtRef.current > SEO_CACHE_TTL;
-
-    if (taskId && (taskId !== loadedForTaskIdRef.current || expired)) {
-      loadedForTaskIdRef.current = taskId;
-      loadedAtRef.current = now;
-      loadAutocomplete();
-    } else if (taskId) {
-      const cached = seoCache.current.get(taskId);
-      if (cached) {
-        setTitle(cached.title);
-        setDescription(cached.description);
-        setTags(cached.tags);
-      }
+    const videoId = video?.video_id ?? null;
+    if (!videoId || videoId === loadedForVideoIdRef.current) {
+      return;
     }
-  }, [isOpen, video?.task_id]);
+
+    loadedForVideoIdRef.current = videoId;
+
+    if (video?.title) {
+      setTitle(video.title);
+      setDescription(video.description || '');
+      setTags((video.hashtags || []).join(','));
+      setIsLoadingAutoDescription(false);
+      return;
+    }
+
+    loadAutocomplete();
+  }, [isOpen, video?.video_id, video?.title, video?.description, video?.hashtags]);
 
   const loadSocialAccounts = async () => {
     setIsLoadingAccounts(true);
@@ -259,29 +258,20 @@ const SocialPostingModal: React.FC<SocialPostingModalProps> = ({
   };
 
   const loadAutocomplete = async () => {
-    if (!video?.task_id) return;
+    if (!video?.video_id) return;
 
     setIsLoadingAutoDescription(true);
     try {
       const requestPayload = {
-        task_id : video.task_id,
+        video_id: video.video_id,
       };
-      // Call autoSEO API
-      console.log('[Upload] Request payload:', requestPayload);
       const autoSeoResponse = await getAutoSeoYoutube(requestPayload);
 
-      // 각 필드가 있을 때만 덮어씌움 (기존 값 보호)
       if (autoSeoResponse.title) setTitle(autoSeoResponse.title);
       if (autoSeoResponse.description) setDescription(autoSeoResponse.description);
       if (autoSeoResponse.keywords) setTags(autoSeoResponse.keywords.join(','));
-      seoCache.current.set(video.task_id, {
-        title: autoSeoResponse.title || '',
-        description: autoSeoResponse.description || '',
-        tags: autoSeoResponse.keywords?.join(',') || '',
-      });
     } catch (error) {
       console.error('Failed to load autocomplete:', error);
-      // 실패해도 사용자에게 별도 알림 없이 조용히 처리
     } finally {
       setIsLoadingAutoDescription(false);
     }
diff --git a/src/types/api.ts b/src/types/api.ts
index e75525c..854442e 100644
--- a/src/types/api.ts
+++ b/src/types/api.ts
@@ -278,6 +278,9 @@ export interface VideoListItem {
   result_movie_url: string;
   poster_url?: string | null;
   thumbnail_url?: string;
+  title?: string | null;
+  description?: string | null;
+  hashtags?: string[] | null;
   created_at: string;
   like_count: number;
   comment_count: number;
@@ -394,7 +397,7 @@ export interface SocialDisconnectResponse {
 
 // 유튜브 SEO Description 자동완성 요청
 export interface YTAutoSeoRequest {
-  task_id: string;           // 아카이브의 비디오 ID
+  video_id: number;
 }
 
 // 유튜브 SEO Description 자동완성 응답