diff --git a/pywxdump/wx_info/merge_db.py b/pywxdump/wx_info/merge_db.py
index 30da3cdd..acb7d5a4 100644
--- a/pywxdump/wx_info/merge_db.py
+++ b/pywxdump/wx_info/merge_db.py
@@ -20,6 +20,9 @@ def merge_copy_db(db_path, save_path):
 
 # 合并相同名称的数据库 MSG0-MSG9.db
 def merge_msg_db(db_path: list, save_path: str, CreateTime: int = 0):  # CreateTime: 从这个时间开始的消息 10位时间戳
+    # 判断save_path是否为文件夹
+    if os.path.isdir(save_path):
+        save_path = os.path.join(save_path, "merge_MSG.db")
 
     merged_conn = sqlite3.connect(save_path)
     merged_cursor = merged_conn.cursor()
@@ -112,6 +115,9 @@ def merge_msg_db(db_path: list, save_path: str, CreateTime: int = 0):  # CreateT
 
 
 def merge_media_msg_db(db_path: list, save_path: str):
+    # 判断save_path是否为文件夹
+    if os.path.isdir(save_path):
+        save_path = os.path.join(save_path, "merge_Media.db")
     merged_conn = sqlite3.connect(save_path)
     merged_cursor = merged_conn.cursor()