diff --git a/com.twin.app.shoptime/src/components/VideoPlayer/TReactPlayer.jsx b/com.twin.app.shoptime/src/components/VideoPlayer/TReactPlayer.jsx
index 9ec8371f..314ff62b 100644
--- a/com.twin.app.shoptime/src/components/VideoPlayer/TReactPlayer.jsx
+++ b/com.twin.app.shoptime/src/components/VideoPlayer/TReactPlayer.jsx
@@ -159,11 +159,19 @@ export default function TReactPlayer({
   useEffect(() => {
     return () => {
       const videoNode = playerRef.current?.getInternalPlayer();
-      if (videoNode && videoNode.pause) {
-        console.log('[VIDEO-DEBUG] 🧹 비디오 정리 (URL 변경 또는 언마운트)');
-        videoNode.pause();
-        videoNode.src = '';
-        videoNode.srcObject = null;
+      if (videoNode) {
+        try {
+          // VideoPlayer.js에서 이미 처리하므로 최소한 정리만
+          if (videoNode.pause) {
+            videoNode.pause();
+          }
+          // 중복 정리 방지를 위해 조건 더 엄격하게
+          if (typeof videoNode.stopVideo === 'function' && videoNode.stopVideo !== videoNode.pause) {
+            videoNode.stopVideo();
+          }
+        } catch (err) {
+          console.warn('[TReactPlayer] cleanup warning:', err);
+        }
       }
     };
   }, [url]); // ✅ URL 변경 시에도 정리 로직 실행
diff --git a/com.twin.app.shoptime/src/components/VideoPlayer/VideoPlayer.js b/com.twin.app.shoptime/src/components/VideoPlayer/VideoPlayer.js
index 292f1e40..35ff6c22 100644
--- a/com.twin.app.shoptime/src/components/VideoPlayer/VideoPlayer.js
+++ b/com.twin.app.shoptime/src/components/VideoPlayer/VideoPlayer.js
@@ -1040,6 +1040,54 @@ const VideoPlayerBase = class extends React.Component {
     this.announceJob.stop();
     this.renderBottomControl.stop();
     this.slider5WayPressJob.stop();
+    // 플레이어 자원 정리: 언마운트 시 디코더/버퍼 해제
+    try {
+      // 1. 먼저 중지 (가장 중요)
+      if (this.video?.stopVideo) {
+        this.video.stopVideo();
+      } else if (this.video?.pause) {
+        this.video.pause();
+      }
+
+      // 2. 시간 초기화
+      if (this.video?.seekTo) {
+        this.video.seekTo(0);
+      } else if (this.video) {
+        this.video.currentTime = 0;
+      }
+
+      // 3. 리소스 해제
+      if (this.video) {
+        this.video.src = '';
+        if ('srcObject' in this.video) {
+          this.video.srcObject = null;
+        }
+      }
+
+      // 4. 내부 인스턴스 정리 (마지막)
+      if (typeof this.video?.getInternalPlayer === 'function') {
+        try {
+          const hls = this.video.getInternalPlayer('hls');
+          if (hls && typeof hls.destroy === 'function') {
+            hls.destroy();
+          }
+        } catch (hlsErr) {
+          // HLS 정리 실패는 무시
+        }
+
+        try {
+          const yt = this.video.getInternalPlayer();
+          if (yt?.stopVideo) {
+            yt.stopVideo();
+          }
+        } catch (ytErr) {
+          // YouTube 정리 실패는 무시
+        }
+      }
+    } catch (err) {
+      // 정리 중 에러는 무시하고 언마운트 진행
+      // console.warn('[VideoPlayer] cleanup error', err);
+    }
     if (this.floatingLayerController) {
       this.floatingLayerController.unregister();
     }
diff --git a/com.twin.app.shoptime/src/reducers/playReducer.js b/com.twin.app.shoptime/src/reducers/playReducer.js
index a94fc7f3..78389d86 100644
--- a/com.twin.app.shoptime/src/reducers/playReducer.js
+++ b/com.twin.app.shoptime/src/reducers/playReducer.js
@@ -90,6 +90,13 @@ export const playReducer = (state = initialState, action) => {
       };
     }
     case types.CLEAR_PLAYER_INFO: {
+      // 기존 Blob URL들을 모두 해제
+      Object.values(state.subTitleBlobs).forEach(blobUrl => {
+        if (blobUrl && blobUrl.startsWith('blob:')) {
+          URL.revokeObjectURL(blobUrl);
+        }
+      });
+
       return {
         ...state,
         chatData: {},
diff --git a/com.twin.app.shoptime/src/views/PlayerPanel/PlayerPanel.jsx b/com.twin.app.shoptime/src/views/PlayerPanel/PlayerPanel.jsx
index c44e9fea..2676751f 100644
--- a/com.twin.app.shoptime/src/views/PlayerPanel/PlayerPanel.jsx
+++ b/com.twin.app.shoptime/src/views/PlayerPanel/PlayerPanel.jsx
@@ -1896,9 +1896,17 @@ const PlayerPanel = ({ isTabActivated, panelInfo, isOnTop, spotlightId, ...props
   // 자막 Blob URL 수명 관리: 이전 Blob을 해제해 메모리 누수 방지
   useEffect(() => {
     const prevBlobUrl = previousSubtitleBlobRef.current;
-    if (prevBlobUrl && prevBlobUrl !== currentSubtitleBlob && typeof prevBlobUrl === 'string') {
-      if (prevBlobUrl.startsWith('blob:')) {
+
+    // 더 엄격한 타입과 형식 체크
+    if (prevBlobUrl &&
+        typeof prevBlobUrl === 'string' &&
+        prevBlobUrl.startsWith('blob:') &&
+        prevBlobUrl !== currentSubtitleBlob) {
+      try {
         URL.revokeObjectURL(prevBlobUrl);
+        dlog('[PlayerPanel] Previous subtitle Blob URL revoked:', prevBlobUrl);
+      } catch (error) {
+        derror('[PlayerPanel] Failed to revoke Blob URL:', error);
       }
     }
 
@@ -1907,7 +1915,12 @@ const PlayerPanel = ({ isTabActivated, panelInfo, isOnTop, spotlightId, ...props
     return () => {
       const lastBlobUrl = previousSubtitleBlobRef.current;
       if (lastBlobUrl && typeof lastBlobUrl === 'string' && lastBlobUrl.startsWith('blob:')) {
-        URL.revokeObjectURL(lastBlobUrl);
+        try {
+          URL.revokeObjectURL(lastBlobUrl);
+          dlog('[PlayerPanel] Final subtitle Blob URL revoked:', lastBlobUrl);
+        } catch (error) {
+          derror('[PlayerPanel] Failed to revoke final Blob URL:', error);
+        }
       }
       previousSubtitleBlobRef.current = null;
     };