diff --git a/pkg/database/manager.py b/pkg/database/manager.py
index 8bc7571d..752664d0 100644
--- a/pkg/database/manager.py
+++ b/pkg/database/manager.py
@@ -256,6 +256,12 @@ class DatabaseManager:
         """.format(session_name))
         return self.cursor.rowcount > 0
 
+    def delete_all_session_history(self) -> bool:
+        self.__execute__("""
+        delete from `sessions`
+        """)
+        return self.cursor.rowcount > 0
+
     # 将apikey的使用量存进数据库
     def dump_api_key_usage(self, api_keys: dict, usage: dict):
         logging.debug('dumping api key usage...')
diff --git a/pkg/qqbot/command.py b/pkg/qqbot/command.py
index 37ba7142..f63ffbef 100644
--- a/pkg/qqbot/command.py
+++ b/pkg/qqbot/command.py
@@ -336,6 +336,18 @@ def process_command(session_name: str, text_message: str, mgr, config,
                     reply = ["[bot]err: 未找到情景预设:{}".format(params[0])]
             else:
                 reply = ["[bot]err: 仅管理员可设置默认情景预设"]
+        elif cmd == "delhst" and is_admin:
+            if len(params) == 0:
+                reply = ["[bot]err:请输入要删除的会话名: group_<群号> 或者 person_<QQ号>, 或使用 !delhst all 删除所有会话的历史记录"]
+            else:
+                if params[0] == "all":
+                    pkg.utils.context.get_database_manager().delete_all_session_history()
+                    reply = ["[bot]已删除所有会话的历史记录"]
+                else:
+                    if pkg.utils.context.get_database_manager().delete_all_history(params[0]):
+                        reply = ["[bot]已删除会话 {} 的所有历史记录".format(params[0])]
+                    else:
+                        reply = ["[bot]未找到会话 {} 的历史记录".format(params[0])]
         elif cmd == 'reload' and is_admin:
             def reload_task():
                 pkg.utils.reloader.reload_all()