diff --git a/src/components/VideoPlayer/index.vue b/src/components/VideoPlayer/index.vue
index f998c4a6..c1a8fe05 100644
--- a/src/components/VideoPlayer/index.vue
+++ b/src/components/VideoPlayer/index.vue
@@ -456,6 +456,7 @@ export default {
     ...mapMutations({
       SET_currentLang: 'video/SET_currentLang',
       SET_currentTime: 'video/SET_currentTime',
+      SET_selectableLang: 'video/SET_selectableLang',
     }),
     //当视频由于需要缓冲下一帧而停止，解决一直计时的问题
     onWaiting(){
@@ -784,9 +785,37 @@ export default {
     //   }
     // },
     src: function () {
-      // 当视频地址变更时，重载视频
+      // 当视频地址变更时，先重置字幕再重载视频
+      this.isPlaying = false;
+      // 重置字幕相关状态
+      this.SET_currentLang('');
+      this.currentLangLabel = '';
+      
+      // 移除所有现有字幕轨道元素
+      Array.from(this.videoDom.querySelectorAll('track')).forEach(t => t.remove());
+      
+      // 更彻底地清除字幕：重置所有textTracks
+      Array.from(this.videoDom.textTracks).forEach(track => {
+        track.mode = 'hidden';
+        // 尝试移除所有cues（浏览器支持的话）
+        if (track.cues) {
+          while (track.cues.length > 0) {
+            track.cues.remove(0);
+          }
+        }
+      });
+      
+      // 重载视频
       this.videoDom.load();
-      this.isPlaying = false
+      
+      // 如果有默认语言且支持AI翻译，重新设置字幕
+      if (this.isAiTranslate && this.selectableLang && this.selectableLang.length > 0) {
+        // 找到默认语言或第一个可用语言
+        const defaultLang = this.selectableLang.find(lang => lang.srclang === 'zh-CN') || this.selectableLang[0];
+        if (defaultLang) {
+          this.changeLang(defaultLang);
+        }
+      }
     },
   },
 };
diff --git a/src/views/study/coursenew.vue b/src/views/study/coursenew.vue
index 1c952d3d..69ac8bf7 100644
--- a/src/views/study/coursenew.vue
+++ b/src/views/study/coursenew.vue
@@ -1388,6 +1388,7 @@ export default {
     },
     // ai播放器相关 - 视频处理
     handleAIVideo(list = [], r) {
+      console.log('触发了-----------list', list);
       this.SET_selectableLang(list);
       this.SET_courseInfo(this.courseInfo);
       if (this.courseInfo.aiSet && this.courseInfo.aiAbstract == 1 && this.courseInfo.summaryContent) {