diff --git a/scripts/backup.py b/scripts/backup.py
index c20cab572..1d03ff0d2 100755
--- a/scripts/backup.py
+++ b/scripts/backup.py
@@ -142,7 +142,7 @@ class backupTools:
         #     name + " | gzip > " + filename
 
         # skip-opt 不会lock表
-        cmd = db_path + "/bin/mysqldump --defaults-file=" + my_cnf + " --skip-opt --create-options --default-character-set=utf8 " + \
+        cmd = db_path + "/bin/mysqldump --defaults-file=" + my_cnf + " --single-transaction --skip-opt --create-options --default-character-set=utf8 " + \
             name + " | gzip > " + filename
         # print(cmd)
         mw.execShell(cmd)