diff --git a/scripts/migrate_ldapusers.py b/scripts/migrate_ldapusers.py
new file mode 100644
index 0000000000..c85c39a795
--- /dev/null
+++ b/scripts/migrate_ldapusers.py
@@ -0,0 +1,51 @@
+# -*- coding: utf-8 -*-
+import os
+import configparser
+
+import pymysql
+
+
+install_path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+top_dir = os.path.dirname(install_path)
+ccnet_conf = os.path.join(top_dir, 'conf', 'ccnet.conf')
+
+sql = "INSERT INTO EmailUser (email, passwd, is_staff, is_active, ctime) SELECT email, '!', is_staff, is_active, REPLACE(UNIX_TIMESTAMP(CURRENT_TIMESTAMP(6)),'.','') FROM LDAPUsers"
+
+
+def migrate_ldapusers():
+    print('Start migrate LDAPUsers')
+
+    config = configparser.ConfigParser()
+    try:
+        config.read(ccnet_conf)
+        db_user = config.get('Database', 'USER')
+        db_host = config.get('Database', 'HOST')
+        db_port = config.get('Database', 'PORT')
+        db_password = config.get('Database', 'PASSWD')
+        db_name = config.get('Database', 'DB')
+    except Exception as e:
+        print("Failed to read ccnet config file %s: %s" % (ccnet_conf, e))
+        return
+
+    try:
+        conn = pymysql.connect(user=db_user, host=db_host, port=db_port, password=db_password, database=db_name)
+        cursor = conn.cursor()
+    except Exception as e:
+        print('Failed to connect to mysql database: %s' % e)
+        return
+
+    try:
+        cursor.execute(sql)
+        print('Finish migrate LDAPUsers.')
+    except Exception as e:
+        print('Failed to exec sql: %s' % e)
+        return
+    finally:
+        if cursor:
+            cursor.close()
+        if conn:
+            conn.close()
+
+
+if __name__ == '__main__':
+    migrate_ldapusers()