diff --git a/src/main/java/com/peanut/modules/sociology/service/impl/CourseCatalogueChapterServiceImpl.java b/src/main/java/com/peanut/modules/sociology/service/impl/CourseCatalogueChapterServiceImpl.java
index cb2b380e..00a884b1 100644
--- a/src/main/java/com/peanut/modules/sociology/service/impl/CourseCatalogueChapterServiceImpl.java
+++ b/src/main/java/com/peanut/modules/sociology/service/impl/CourseCatalogueChapterServiceImpl.java
@@ -20,6 +20,7 @@ import org.springframework.stereotype.Service;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.stream.Collectors;
 
 @Slf4j
 @Service("sociologyCourseCatalogueChapterService")
@@ -71,7 +72,10 @@ public class CourseCatalogueChapterServiceImpl extends ServiceImpl<CourseCatalog
         }
 
         flag.put("videos",courseCatalogueChapterVideoEntities);
-        //
+
+
+        flag.put("current",getCurrentVideo(chapterId));
+
         List<UserCourseBuyEntity> userCourseBuyEntities = userCourseBuyDao.selectList(new LambdaQueryWrapper<UserCourseBuyEntity>().eq(UserCourseBuyEntity::getUserId, ShiroUtils.getUId()).eq(UserCourseBuyEntity::getCatalogueId, byId.getCatalogueId()));
         if (userCourseBuyEntities.size()==1){
             flag.put("buy",userCourseBuyEntities.get(0));
@@ -81,4 +85,22 @@ public class CourseCatalogueChapterServiceImpl extends ServiceImpl<CourseCatalog
     }
 
 
+    private int getCurrentVideo(Integer chapterId){
+        MPJLambdaWrapper<CourseCatalogueChapterVideoEntity> wrapper = new MPJLambdaWrapper<>();
+        wrapper.leftJoin(UserCourseVideoPositionEntity.class,UserCourseVideoPositionEntity::getVideoId,CourseCatalogueChapterVideoEntity::getId);
+        wrapper.selectAll(CourseCatalogueChapterVideoEntity.class);
+        wrapper.eq(CourseCatalogueChapterVideoEntity::getChapterId,chapterId);
+        wrapper.orderByDesc(UserCourseVideoPositionEntity::getUpdateTime);
+        List<CourseCatalogueChapterVideoEntity> courseCatalogueChapterVideoEntities = courseCatalogueChapterVideoDao.selectJoinList(CourseCatalogueChapterVideoEntity.class, wrapper);
+        if(courseCatalogueChapterVideoEntities.size()>0){
+            return courseCatalogueChapterVideoEntities.get(0).getId();
+        }else {
+            List<CourseCatalogueChapterVideoEntity> courseCatalogueChapterVideoEntities1 = courseCatalogueChapterVideoDao.selectList(new LambdaQueryWrapper<CourseCatalogueChapterVideoEntity>()
+                    .eq(CourseCatalogueChapterVideoEntity::getChapterId, chapterId).orderByAsc(CourseCatalogueChapterVideoEntity::getSort));
+            return courseCatalogueChapterVideoEntities1.size()>0?courseCatalogueChapterVideoEntities1.get(0).getId():0;
+        }
+
+    }
+
+
 }