diff --git a/plugins/mariadb/index.py b/plugins/mariadb/index.py
index 8245cf93b..2bfb93894 100755
--- a/plugins/mariadb/index.py
+++ b/plugins/mariadb/index.py
@@ -1792,7 +1792,7 @@ def addMasterRepSlaveUser(version=''):
     # address = args['address'].strip()
     # dataAccess = args['dataAccess'].strip()
 
-    reg = "^[\w\.-]+$"
+    reg = "^[\w-]+$"
     if not re.match(reg, username):
         return mw.returnJson(False, '用户名不能带有特殊符号!')
     checks = ['root', 'mysql', 'test', 'sys', 'panel_logs']
diff --git a/plugins/mysql-apt/index.py b/plugins/mysql-apt/index.py
index a0c6c674b..7ab236ade 100755
--- a/plugins/mysql-apt/index.py
+++ b/plugins/mysql-apt/index.py
@@ -1779,7 +1779,7 @@ def addMasterRepSlaveUser(version=''):
     # address = args['address'].strip()
     # dataAccess = args['dataAccess'].strip()
 
-    reg = "^[\w\.-]+$"
+    reg = "^[\w-]+$"
     if not re.match(reg, username):
         return mw.returnJson(False, '用户名不能带有特殊符号!')
     checks = ['root', 'mysql', 'test', 'sys', 'panel_logs']
diff --git a/plugins/mysql-yum/index.py b/plugins/mysql-yum/index.py
index 97d983b60..7de864129 100755
--- a/plugins/mysql-yum/index.py
+++ b/plugins/mysql-yum/index.py
@@ -1754,7 +1754,7 @@ def addMasterRepSlaveUser(version=''):
     # address = args['address'].strip()
     # dataAccess = args['dataAccess'].strip()
 
-    reg = "^[\w\.-]+$"
+    reg = "^[\w-]+$"
     if not re.match(reg, username):
         return mw.returnJson(False, '用户名不能带有特殊符号!')
     checks = ['root', 'mysql', 'test', 'sys', 'panel_logs']
diff --git a/plugins/mysql/index.py b/plugins/mysql/index.py
index 7318cbd83..a41739c67 100755
--- a/plugins/mysql/index.py
+++ b/plugins/mysql/index.py
@@ -1935,7 +1935,7 @@ def addMasterRepSlaveUser(version=''):
     # address = args['address'].strip()
     # dataAccess = args['dataAccess'].strip()
 
-    reg = "^[\w\.-]+$"
+    reg = "^[\w-]+$"
     if not re.match(reg, username):
         return mw.returnJson(False, '用户名不能带有特殊符号!')
     checks = ['root', 'mysql', 'test', 'sys', 'panel_logs']