diff --git a/app/models/user.rb b/app/models/user.rb
index 5f04e57d6..8afdf1c34 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -574,10 +574,12 @@ class User < Principal
   def identity
     ue = self.user_extensions
     unless ue.blank?
-      if ue.technical_title.blank?
-        ue.identity == 0 ? "老师" : (ue.identity == 1 ? "学生" : "专业人士")
+      if ue.identity == 0
+        result = ue.technical_title ? ue.technical_title : "老师"
+      elsif ue.identity == 1
+        result = "学生"
       else
-        result = ue.technical_title
+        result = ue.technical_title ? ue.technical_title : "专业人士"
       end
     end
   end