diff --git a/tools/avatar_migration.py b/tools/avatar_migration.py
new file mode 100755
index 0000000000..2e7f518338
--- /dev/null
+++ b/tools/avatar_migration.py
@@ -0,0 +1,62 @@
+#!/usr/bin/env python
+"""
+Migrate seahub avatar files from file system to MySQL.
+
+Usage: ./avatar_migrate.py /home/user/seahub
+
+Note: seahub database must be MySQL.
+"""
+import base64
+import datetime
+import hashlib
+import os
+import sys
+import MySQLdb
+
+
+if len(sys.argv) != 2:
+    seahub_root = raw_input("Please enter root path of seahub: ")
+else:
+    seahub_root = sys.argv[1]
+
+host = raw_input("Please enter MySQL host:(leave blank for localhost) ")
+if not host:
+    host = 'localhost'
+user = raw_input("Please enter MySQL user: ")
+passwd = raw_input("Please enter password: ")
+db = raw_input("Please enter seahub database: ")
+    
+'''Read user's avatar path from MySQL-avatar_avatar and avatar_groupavatar'''
+db = MySQLdb.connect(host=host, user=user, passwd=passwd, db=db)
+cur = db.cursor()
+cur.execute("(SELECT avatar FROM avatar_avatar) UNION (SELECT avatar FROM avatar_groupavatar)")
+rows = cur.fetchall()
+
+'''Fetch avatar file info from file system'''
+records = []
+for row in rows:
+    avatar_path = row[0]
+    avatar_full_path = os.path.join(seahub_root, 'media', avatar_path)
+    try:
+        statinfo = os.stat(avatar_full_path)
+    except OSError as e:
+        print e
+        continue
+    size = statinfo.st_size
+    mtime = statinfo.st_mtime
+    mtime_str = datetime.datetime.fromtimestamp(int(mtime)).strftime('%Y-%m-%d %H:%M:%S')
+    with file(avatar_full_path) as f:
+        avatar_path = avatar_path.replace('\\', '/')
+        avatar_path_md5 = hashlib.md5(avatar_path).hexdigest()
+        binary = f.read()
+        encoded = base64.b64encode(binary)
+
+    records.append((avatar_path, avatar_path_md5, encoded, size, mtime_str))
+
+'''Write avatar file to MySQL-avatar_uploaded'''
+for record in records:
+    sql = "INSERT INTO `avatar_uploaded`(`filename`, `filename_md5`, `data`, `size`, `mtime`) VALUES ('%s', '%s', '%s', %d, '%s')" % (record)
+    cur.execute(sql)
+
+db.commit()
+db.close()