diff --git a/src/ZM/DBCache/CourseCache.php b/src/ZM/DBCache/CourseCache.php
deleted file mode 100644
index 82681c3d..00000000
--- a/src/ZM/DBCache/CourseCache.php
+++ /dev/null
@@ -1,18 +0,0 @@
-<?php
-
-
-namespace ZM\DBCache;
-
-
-class CourseCache implements DBCache
-{
-
-    /**
-     * @var array
-     */
-    private static $data;
-
-    public static function reset() {
-        self::$data = [];
-    }
-}
\ No newline at end of file
diff --git a/src/ZM/DBCache/DBCache.php b/src/ZM/DBCache/DBCache.php
deleted file mode 100644
index 67674370..00000000
--- a/src/ZM/DBCache/DBCache.php
+++ /dev/null
@@ -1,10 +0,0 @@
-<?php
-
-
-namespace ZM\DBCache;
-
-
-interface DBCache
-{
-    public static function reset();
-}
\ No newline at end of file
diff --git a/src/ZM/DBCache/DBCacheManager.php b/src/ZM/DBCache/DBCacheManager.php
deleted file mode 100644
index c357d6c6..00000000
--- a/src/ZM/DBCache/DBCacheManager.php
+++ /dev/null
@@ -1,15 +0,0 @@
-<?php
-
-
-namespace ZM\DBCache;
-
-
-class DBCacheManager
-{
-    public static function freeAllCache(){
-        DHUerCache::reset();
-        UserCache::reset();
-        GroupCache::reset();
-        CourseCache::reset();
-    }
-}
\ No newline at end of file
diff --git a/src/ZM/DBCache/DHUerCache.php b/src/ZM/DBCache/DHUerCache.php
deleted file mode 100644
index 3fa6f86a..00000000
--- a/src/ZM/DBCache/DHUerCache.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-
-
-namespace ZM\DBCache;
-
-
-class DHUerCache implements DBCache
-{
-    /**
-     * @var array
-     */
-    private static $data;
-
-    public static function reset() {
-        self::$data = [];
-    }
-}
\ No newline at end of file
diff --git a/src/ZM/DBCache/GroupCache.php b/src/ZM/DBCache/GroupCache.php
deleted file mode 100644
index 1fbe07c5..00000000
--- a/src/ZM/DBCache/GroupCache.php
+++ /dev/null
@@ -1,18 +0,0 @@
-<?php
-
-
-namespace ZM\DBCache;
-
-
-class GroupCache implements DBCache
-{
-
-    /**
-     * @var array
-     */
-    private static $data;
-
-    public static function reset() {
-        self::$data = [];
-    }
-}
\ No newline at end of file
diff --git a/src/ZM/DBCache/UserCache.php b/src/ZM/DBCache/UserCache.php
deleted file mode 100644
index 5f631f4d..00000000
--- a/src/ZM/DBCache/UserCache.php
+++ /dev/null
@@ -1,18 +0,0 @@
-<?php
-
-
-namespace ZM\DBCache;
-
-
-class UserCache implements DBCache
-{
-
-    /**
-     * @var array
-     */
-    private static $data;
-
-    public static function reset() {
-        self::$data = [];
-    }
-}
\ No newline at end of file
diff --git a/src/ZM/Event/Swoole/WorkerStartEvent.php b/src/ZM/Event/Swoole/WorkerStartEvent.php
index 942ed0a4..438c7afb 100644
--- a/src/ZM/Event/Swoole/WorkerStartEvent.php
+++ b/src/ZM/Event/Swoole/WorkerStartEvent.php
@@ -13,7 +13,6 @@ use ZM\Annotation\AnnotationParser;
 use ZM\Annotation\Swoole\SwooleEventAfter;
 use ZM\Connection\ConnectionManager;
 use ZM\DB\DB;
-use ZM\DBCache\DBCacheManager;
 use Framework\Console;
 use Framework\GlobalConfig;
 use Framework\ZMBuf;
@@ -45,7 +44,6 @@ class WorkerStartEvent implements SwooleEvent
         Console::info("Worker启动中");
         ZMBuf::resetCache(); //清空变量缓存
         ZMBuf::set("wait_start", []); //添加队列，在workerStart运行完成前先让其他协程等待执行
-        DBCacheManager::freeAllCache(); // 清空数据库缓存
         $this->resetConnections();//释放所有与framework的连接
 
         //设置炸毛buf中储存的对象