diff --git a/rc-service/rc-service-other/other-application/src/main/java/com/red/circle/other/app/scheduler/DynamicCommentHotScoreTask.java b/rc-service/rc-service-other/other-application/src/main/java/com/red/circle/other/app/scheduler/DynamicCommentHotScoreTask.java
index 18b83921..5343bde4 100644
--- a/rc-service/rc-service-other/other-application/src/main/java/com/red/circle/other/app/scheduler/DynamicCommentHotScoreTask.java
+++ b/rc-service/rc-service-other/other-application/src/main/java/com/red/circle/other/app/scheduler/DynamicCommentHotScoreTask.java
@@ -1,7 +1,6 @@
 package com.red.circle.other.app.scheduler;
 
 import com.red.circle.component.redis.annotation.TaskCacheLock;
-import com.red.circle.component.redis.service.RedisService;
 import com.red.circle.framework.mybatis.constant.PageConstant;
 import com.red.circle.other.infra.database.cache.service.other.DynamicCacheService;
 import com.red.circle.other.infra.database.rds.entity.dynamic.DynamicComment;
@@ -10,7 +9,6 @@ import com.red.circle.tool.core.collection.CollectionUtils;
 import java.util.List;
 import java.util.Objects;
 import java.util.Optional;
-import java.util.concurrent.TimeUnit;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.scheduling.annotation.Scheduled;
@@ -18,7 +16,7 @@ import org.springframework.stereotype.Component;
 
 /**
  * 评论热度分数更新定时任务.
- * 每10分钟执行一次，更新最近7天的评论热度分数
+ * 每10分钟执行一次，更新最近7天的根评论热度分数
  */
 @Slf4j
 @Component
@@ -46,22 +44,22 @@ public class DynamicCommentHotScoreTask {
 
       while (hasMore) {
         // 分批查询，每次1000条
-        List<DynamicComment> comments = queryRecentComments(sevenDaysAgo, lastId, 1000);
+        List<DynamicComment> rootComments = queryRecentRootComments(sevenDaysAgo, lastId, 1000);
         
-        if (CollectionUtils.isEmpty(comments)) {
+        if (CollectionUtils.isEmpty(rootComments)) {
           hasMore = false;
           break;
         }
 
         // 批量更新热度分数
-        for (DynamicComment comment : comments) {
-          updateCommentHotScore(comment);
+        for (DynamicComment rootComment : rootComments) {
+          updateCommentHotScore(rootComment);
           totalUpdated++;
         }
 
         // 准备下一批
-        lastId = comments.get(comments.size() - 1).getId();
-        hasMore = comments.size() >= 1000;
+        lastId = rootComments.get(rootComments.size() - 1).getId();
+        hasMore = rootComments.size() >= 1000;
       }
 
       long costTime = System.currentTimeMillis() - startTime;
@@ -73,9 +71,9 @@ public class DynamicCommentHotScoreTask {
   }
 
   /**
-   * 查询最近的根评论
+   * 查询最近的根评论（root_comment_id 为 null）
    */
-  private List<DynamicComment> queryRecentComments(long since, Long lastId, int limit) {
+  private List<DynamicComment> queryRecentRootComments(long since, Long lastId, int limit) {
     return dynamicCommentService.query()
         .isNull(DynamicComment::getRootCommentId)
         .ge(DynamicComment::getCreateTime, new java.sql.Timestamp(since))
@@ -86,40 +84,64 @@ public class DynamicCommentHotScoreTask {
   }
 
   /**
-   * 更新单条评论的热度分数
+   * 更新单条根评论的热度分数
    */
-  private void updateCommentHotScore(DynamicComment comment) {
+  private void updateCommentHotScore(DynamicComment rootComment) {
     try {
-      // 获取点赞数
-      Long likeCount = Optional.ofNullable(
-          dynamicCacheService.getCommentLikeQuantity(comment.getDynamicContentId(), comment.getId())
+      // 1. 获取根评论自身的点赞数
+      Long rootLikeCount = Optional.ofNullable(
+          dynamicCacheService.getCommentLikeQuantity(rootComment.getDynamicContentId(), rootComment.getId())
       ).orElse(0L);
 
-      // 计算热度分数
-      double hotScore = calculateHotScore(comment, likeCount);
+      // 2. 查询该根评论下的所有子评论
+      List<DynamicComment> childComments = dynamicCommentService.query()
+          .eq(DynamicComment::getRootCommentId, rootComment.getId())
+          .list();
 
-      // 更新到数据库
+      // 3. 汇总所有子评论的点赞数
+      long totalChildLikes = 0L;
+      if (CollectionUtils.isNotEmpty(childComments)) {
+        for (DynamicComment childComment : childComments) {
+          Long childLikeCount = Optional.ofNullable(
+              dynamicCacheService.getCommentLikeQuantity(childComment.getDynamicContentId(), childComment.getId())
+          ).orElse(0L);
+          totalChildLikes += childLikeCount;
+        }
+      }
+
+      // 4. 总点赞数 = 根评论点赞数 + 所有子评论点赞数
+      long totalLikeCount = rootLikeCount + totalChildLikes;
+
+      // 5. 计算热度分数
+      double hotScore = calculateHotScore(rootComment, totalLikeCount);
+
+      // 6. 更新到数据库
       dynamicCommentService.update()
           .set(DynamicComment::getHotScore, hotScore)
-          .eq(DynamicComment::getId, comment.getId())
+          .eq(DynamicComment::getId, rootComment.getId())
           .last(PageConstant.LIMIT_ONE)
           .execute();
 
+      if (totalChildLikes > 0) {
+        log.debug("更新评论热度 - 根评论ID:{}, 根评论点赞:{}, 子评论点赞:{}, 总点赞:{}, 热度分数:{}", 
+            rootComment.getId(), rootLikeCount, totalChildLikes, totalLikeCount, hotScore);
+      }
+
     } catch (Exception e) {
-      log.error("更新评论热度分数失败，commentId={}", comment.getId(), e);
+      log.error("更新评论热度分数失败，rootCommentId={}", rootComment.getId(), e);
     }
   }
 
   /**
    * 计算热度分数
-   * 公式: 点赞数 / (时间差小时数 + 2)^1.5
+   * 公式: 总点赞数 / (时间差小时数 + 2)^1.5
    */
-  private double calculateHotScore(DynamicComment comment, Long likeCount) {
+  private double calculateHotScore(DynamicComment comment, Long totalLikeCount) {
     long currentTime = System.currentTimeMillis();
     long ageMillis = currentTime - comment.getCreateTime().getTime();
     double ageHours = Math.max(ageMillis / (1000.0 * 60 * 60), 0.1);
     
-    return likeCount / Math.pow(ageHours + 2, 1.5);
+    return totalLikeCount / Math.pow(ageHours + 2, 1.5);
   }
 
 }