diff --git a/app/models/user.rb b/app/models/user.rb
index 70cd54c92..8e1ee09b6 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -20,6 +20,8 @@ class User < ApplicationRecord
 
   VALID_EMAIL_REGEX = /^[a-zA-Z0-9]+([.\-_\\]*[a-zA-Z0-9])*@([a-z0-9]+[-a-z0-9]*[a-z0-9]+.){1,63}[a-z0-9]+$/i
   VALID_PHONE_REGEX = /^1\d{10}$/
+  # 身份证
+  VALID_NUMBER_REGEX = /^[1-9]\d{5}(18|19|20|(3\d))\d{2}((0[1-9])|(1[0-2]))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx]$/
 
   LOGIN_LENGTH_LIMIT = 30
   MAIL_LENGTH_LMIT = 60
@@ -162,6 +164,7 @@ class User < ApplicationRecord
   # validates_format_of :mail, with: VALID_EMAIL_REGEX, multiline: true
   # validates_format_of :phone, with: VALID_PHONE_REGEX, multiline: true
   validate :validate_password_length
+  validate :ID_number, with: VALID_NUMBER_REGEX
 
   # validates :nickname, presence: true, length: { maximum: 10 }
   # validates :lastname, presence: true