diff --git a/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/LR_Content/plugin/custmerform/lr-formrender.js b/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/LR_Content/plugin/custmerform/lr-formrender.js
index 0fc925c5e..22c9018d7 100644
--- a/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/LR_Content/plugin/custmerform/lr-formrender.js	
+++ b/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/LR_Content/plugin/custmerform/lr-formrender.js	
@@ -150,7 +150,7 @@
                 }
             }
             var r = { code: true, msg: '' };
-            if (checkexpession == 'LenNum' || checkexpession == 'LenNumOrNull' || checkexpession == 'LenStr' || checkexpession == 'LenStrOrNull') {
+            if (checkexpession == 'LenNum' || checkexpession == 'LenNumOrNull' || checkexpession == 'LenStr' || checkexpession == 'LenStrOrNull' || checkexpession == 'MinLenStr') {
                 var len = $this.attr("length");
                 r = checkfn(value, len);
             } else {
diff --git a/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/LR_Content/script/lr-validator-helper.js b/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/LR_Content/script/lr-validator-helper.js
index eef668139..40305ce00 100644
--- a/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/LR_Content/script/lr-validator-helper.js	
+++ b/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/LR_Content/script/lr-validator-helper.js	
@@ -202,6 +202,15 @@
                 res.msg = '必须小于等于' + n + '位字符或空';
             }
             return res;
+        },
+        isMinLenStr: function (obj, n) {//验证是否大于等于n位数的字符串 nchar
+            var res = { code: true, msg: '' };
+            obj = $.trim(obj);
+            if (!learun.validator.isNotNull(obj).code || obj.length < n) {
+                res.code = false;
+                res.msg = '必须大于等于' + n + '位字符';
+            }
+            return res;
         }
     };
 
diff --git a/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/LR_Content/script/lr-validator.js b/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/LR_Content/script/lr-validator.js
index 42737faf6..c18554fb1 100644
--- a/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/LR_Content/script/lr-validator.js	
+++ b/Learun.Framework.Ultimate V7/Learun.Application.Web/Views/LR_Content/script/lr-validator.js	
@@ -88,7 +88,7 @@
             //    value = $this.val();
             //}
             var r = { code: true, msg: '' };
-            if (checkexpession == 'LenNum' || checkexpession == 'LenNumOrNull' || checkexpession == 'LenStr' || checkexpession == 'LenStrOrNull') {
+            if (checkexpession == 'LenNum' || checkexpession == 'LenNumOrNull' || checkexpession == 'LenStr' || checkexpession == 'LenStrOrNull' || checkexpession == 'MinLenStr') {
                 var len = $this.attr("length");
                 r = checkfn(value, len);
             } else {