diff --git a/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/ArticleMapper.java b/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/ArticleMapper.java
index 548f917..863a63b 100644
--- a/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/ArticleMapper.java
+++ b/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/ArticleMapper.java
@@ -50,6 +50,16 @@ public interface ArticleMapper extends BaseMapper<ArticleEntity> {
      */
     void updContentById(ArticleEntity entity);
 
+    /**
+     * 查询某段时间内编辑过内容的文章数
+     *
+     * @param beginUpdTime 开始修改日期
+     * @param endUpdTime   结束修改日期
+     */
+    ArticleStatRes statUpdArticleCount(@Param("beginUpdTime") String beginUpdTime,
+                             @Param("endUpdTime") String endUpdTime,
+                             @Param("userId") Long userId);
+
     /**
      * 修改某段日期内修改的文章数据
      *
diff --git a/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/ArticleService.java b/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/ArticleService.java
index fb1f895..390e5a6 100644
--- a/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/ArticleService.java
+++ b/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/ArticleService.java
@@ -19,6 +19,7 @@ import com.blossom.backend.server.doc.pojo.DocTreeRes;
 import com.blossom.backend.server.utils.ArticleUtil;
 import com.blossom.backend.server.utils.DocUtil;
 import com.blossom.common.base.exception.XzException404;
+import com.blossom.common.base.util.DateUtils;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.scheduling.annotation.Async;
@@ -188,6 +189,7 @@ public class ArticleService extends ServiceImpl<ArticleMapper, ArticleEntity> {
         if (req.getHtml() != null) {
             req.setHtml(req.getHtml().replaceAll("<p><br></p>", ""));
         }
+        req.setUpdMarkdownTime(DateUtils.date());
         baseMapper.updContentById(req);
         referenceService.bind(req.getUserId(), req.getId(), req.getName(), req.getReferences());
         logService.insert(req.getId(), 0, req.getMarkdown());
diff --git a/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/pojo/ArticleEntity.java b/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/pojo/ArticleEntity.java
index dc8557a..41cd8c7 100644
--- a/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/pojo/ArticleEntity.java
+++ b/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/pojo/ArticleEntity.java
@@ -118,6 +118,10 @@ public class ArticleEntity extends AbstractPOJO implements Serializable {
      * 用户ID
      */
     private Long userId;
+    /**
+     * 文章内容的修改时间
+     */
+    private Date updMarkdownTime;
 
     //region ============================== 非数据库字段 ==============================
     /**
diff --git a/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/stat/ArticleStatJob.java b/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/stat/ArticleStatJob.java
index 20a9bc7..108f7e3 100644
--- a/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/stat/ArticleStatJob.java
+++ b/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/stat/ArticleStatJob.java
@@ -42,12 +42,12 @@ public class ArticleStatJob {
         }
 
         for (UserEntity user : users) {
-            ArticleStatRes statCount = statService.statCount(toDayBegin, toDayEnd, user.getId());
-            statService.updByDate(1, toDay, statCount.getArticleCount(), user.getId());
+            ArticleStatRes statCount = statService.statUpdArticleCount(toDayBegin, toDayEnd, user.getId());
+            statService.updByDate(ArticleStatTypeEnum.ARTICLE_HEATMAP, toDay, statCount.getArticleCount(), user.getId());
 
             String toMouth = DateUtils.format(DateUtils.beginOfMonth(DateUtils.date()), DateUtils.PATTERN_YYYYMMDD);
             ArticleStatRes statWord = statService.statCount(null, null, user.getId());
-            statService.updByDate(2, toMouth, statWord.getArticleWords(), user.getId());
+            statService.updByDate(ArticleStatTypeEnum.ARTICLE_WORDS, toMouth, statWord.getArticleWords(), user.getId());
         }
     }
 }
diff --git a/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/stat/ArticleStatService.java b/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/stat/ArticleStatService.java
index ce868b7..b9fc6e8 100644
--- a/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/stat/ArticleStatService.java
+++ b/blossom-backend/backend/src/main/java/com/blossom/backend/server/article/stat/ArticleStatService.java
@@ -140,6 +140,16 @@ public class ArticleStatService extends ServiceImpl<ArticleStatMapper, ArticleSt
         return res;
     }
 
+    /**
+     * 文章统计, 文章数, 总字数
+     *
+     * @param beginUpdTime 修改日期的开始范围
+     * @param endUpdTime   修改日期的结束范围
+     */
+    public ArticleStatRes statUpdArticleCount(String beginUpdTime, String endUpdTime, Long userId) {
+        return articleMapper.statUpdArticleCount(beginUpdTime, endUpdTime, userId);
+    }
+
     /**
      * 文章统计, 文章数, 总字数
      *
@@ -161,7 +171,7 @@ public class ArticleStatService extends ServiceImpl<ArticleStatMapper, ArticleSt
             return;
         }
         for (ArticleWordsRes words : req.getWordsList()) {
-            this.updByDate(ArticleStatTypeEnum.ARTICLE_WORDS.getType(), words.getDate() + "-01", words.getValue(), userId);
+            this.updByDate(ArticleStatTypeEnum.ARTICLE_WORDS, words.getDate() + "-01", words.getValue(), userId);
         }
     }
 
@@ -174,26 +184,26 @@ public class ArticleStatService extends ServiceImpl<ArticleStatMapper, ArticleSt
      * @param userId 用户ID
      */
     @Transactional(rollbackFor = Exception.class)
-    public void updByDate(Integer type, String date, Integer value, Long userId) {
+    public void updByDate(ArticleStatTypeEnum type, String date, Integer value, Long userId) {
         if (value == null) {
             value = 0;
         }
         LambdaQueryWrapper<ArticleStatEntity> existWhere = new LambdaQueryWrapper<>();
         existWhere
                 .eq(ArticleStatEntity::getUserId, userId)
-                .eq(ArticleStatEntity::getType, type)
+                .eq(ArticleStatEntity::getType, type.getType())
                 .eq(ArticleStatEntity::getStatDate, date);
         if (baseMapper.exists(existWhere)) {
             LambdaQueryWrapper<ArticleStatEntity> updWhere = new LambdaQueryWrapper<>();
             updWhere.eq(ArticleStatEntity::getUserId, userId)
-                    .eq(ArticleStatEntity::getType, type)
+                    .eq(ArticleStatEntity::getType, type.getType())
                     .eq(ArticleStatEntity::getStatDate, date);
             ArticleStatEntity upd = new ArticleStatEntity();
             upd.setStatValue(value);
             baseMapper.update(upd, updWhere);
         } else {
             ArticleStatEntity ist = new ArticleStatEntity();
-            ist.setType(type);
+            ist.setType(type.getType());
             ist.setStatDate(DateUtils.parse(date, DateUtils.PATTERN_YYYYMMDD));
             ist.setStatValue(value);
             ist.setUserId(userId);
diff --git a/blossom-backend/backend/src/main/resources/mapper/ArticleMapper.xml b/blossom-backend/backend/src/main/resources/mapper/ArticleMapper.xml
index 261edd5..372a6bc 100644
--- a/blossom-backend/backend/src/main/resources/mapper/ArticleMapper.xml
+++ b/blossom-backend/backend/src/main/resources/mapper/ArticleMapper.xml
@@ -92,12 +92,24 @@
             html     = #{html},
             words    = #{words},
             toc      = #{toc},
-            version  = version + 1
+            version  = version + 1,
+            upd_markdown_time = #{updMarkdownTime}
         where id = #{id}
           and user_id = #{userId}
     </update>
 
     <!-- ======================================== 统计 ========================================   -->
+    <select id="statUpdArticleCount" resultType="com.blossom.backend.server.article.draft.pojo.ArticleStatRes">
+        select count(*) as articleCount
+          from blossom_article
+         where user_id = #{userId}
+        <if test="beginUpdTime != null and beginUpdTime != ''">
+            and upd_markdown_time >= #{beginUpdTime}
+        </if>
+        <if test="endUpdTime != null and endUpdTime != ''">
+            and #{endUpdTime} >= upd_markdown_time
+        </if>
+    </select>
 
     <select id="statCount" resultType="com.blossom.backend.server.article.draft.pojo.ArticleStatRes">
         select count(*) as articleCount, sum(words) as articleWords
diff --git a/blossom-backend/backend/src/main/resources/schema-mysql.sql b/blossom-backend/backend/src/main/resources/schema-mysql.sql
index 4166b7a..40d901f 100644
--- a/blossom-backend/backend/src/main/resources/schema-mysql.sql
+++ b/blossom-backend/backend/src/main/resources/schema-mysql.sql
@@ -641,4 +641,7 @@ CREATE TABLE IF NOT EXISTS `base_user_param`
   COLLATE = utf8mb4_bin;
 
 -- Code that might be wrong goes last
-alter table blossom_folder add column star_status tinyint(1) NOT NULL DEFAULT 0 COMMENT '收藏 0:否,1:是';
\ No newline at end of file
+-- since 1.14.0
+alter table blossom_folder add column star_status tinyint(1) NOT NULL DEFAULT 0 COMMENT '收藏 0:否,1:是';
+-- since 1.15.0
+alter table blossom_article add column upd_markdown_time datetime COMMENT '文章内容的修改时间';
\ No newline at end of file