diff --git a/lib/tasks/import_educoder_cource_repo.rake b/lib/tasks/import_educoder_cource_repo.rake
index 0b35882ee..a861d9600 100644
--- a/lib/tasks/import_educoder_cource_repo.rake
+++ b/lib/tasks/import_educoder_cource_repo.rake
@@ -15,7 +15,7 @@ namespace :import_educoder_cource_repo do
         user = User.find_by(phone: row.myshixun_user_phone) || User.find_by(mail: row.myshixun_user_mail)
         unless user.present?
           username = generate_user_login('p')
-          email = row.myshixun_user_mail
+          email = row.myshixun_user_mail.blank? ? "#{username}@gitlink.org.cn" : row.myshixun_user_mail
           phone = row.myshixun_user_phone
           password = "a12345678"
           user = User.new(nickname: row.myshixun_user_name, login: username, mail: email, password: password, type: 'User', phone: phone)