diff --git a/springboot-database/src/main/java/com/tiesheng/database/config/DbBackupConfig.java b/springboot-database/src/main/java/com/tiesheng/database/config/DbBackupConfig.java
index 24b6edf..eb579e9 100644
--- a/springboot-database/src/main/java/com/tiesheng/database/config/DbBackupConfig.java
+++ b/springboot-database/src/main/java/com/tiesheng/database/config/DbBackupConfig.java
@@ -5,7 +5,6 @@ import cn.hutool.core.io.FileUtil;
 import cn.hutool.core.util.RuntimeUtil;
 import cn.hutool.core.util.StrUtil;
 import cn.hutool.extra.spring.SpringUtil;
-import cn.hutool.log.LogFactory;
 import com.tiesheng.database.utls.TieshengDbUtil;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.context.annotation.Configuration;
@@ -29,6 +28,11 @@ public class DbBackupConfig {
      */
     private String format = "yyyyMMdd";
 
+    /**
+     * 过期天数
+     */
+    private Integer days = 7;
+
 
     /**
      * 数据库备份
@@ -38,16 +42,20 @@ public class DbBackupConfig {
         String username = SpringUtil.getProperty("spring.datasource.username");
         String password = SpringUtil.getProperty("spring.datasource.password");
         String dbName = TieshengDbUtil.getTableSchema(url);
-
+        String backupDir = StrUtil.format("{}{}", getPath(), dbName);
         try {
-            String saveFile = StrUtil.format("{}{}/{}.sql", getPath(), dbName, DateUtil.format(new Date(), format));
+            String saveFile = StrUtil.format("{}/{}.sql", backupDir, DateUtil.format(new Date(), format));
             FileUtil.mkParentDirs(saveFile);
             String cmd = StrUtil.format("mysqldump -u {} --password={} --databases {} " +
                     "--compress --skip-opt --result-file {} ", username, password, dbName, saveFile);
             RuntimeUtil.execForStr(cmd);
             RuntimeUtil.execForStr(StrUtil.format("gzip -9 {}", saveFile));
-        } catch (Exception e) {
-            LogFactory.get().info(e);
+
+            // 删除过期备份
+            RuntimeUtil.execForStr("find " + backupDir + " -mtime +" + days,
+                    " xargs rm -rf");
+
+        } catch (Exception ignore) {
         }
 
     }
@@ -71,4 +79,12 @@ public class DbBackupConfig {
     public void setFormat(String format) {
         this.format = format;
     }
+
+    public Integer getDays() {
+        return days;
+    }
+
+    public void setDays(Integer days) {
+        this.days = days;
+    }
 }