diff --git a/Tiobon.Core.Services/Ghre/Ghre_TeacherServices.cs b/Tiobon.Core.Services/Ghre/Ghre_TeacherServices.cs
index 3b265ca7..5ab78016 100644
--- a/Tiobon.Core.Services/Ghre/Ghre_TeacherServices.cs
+++ b/Tiobon.Core.Services/Ghre/Ghre_TeacherServices.cs
@@ -505,6 +505,15 @@ FROM (SELECT A.*,
                 }
                 dict.Add("TeacherType", "Out");
             }
+
+            if (await base.AnyAsync(x => x.TeacherNo == TeacherNo))
+            {
+                comments.Add("讲师编号重复！");
+                data.ErrorCount++;
+                dt.Rows[i]["Comments"] = string.Join(";", comments.Select(a => a));
+                isExistError = true;
+                continue;
+            }
             if (TeacherLevel.IsNullOrEmpty())
             {
                 comments.Add("讲师等级不能为空！");