diff --git a/public/react/src/modules/courses/new/CoursesNew.js b/public/react/src/modules/courses/new/CoursesNew.js
index dc96c211f..86789b8a2 100644
--- a/public/react/src/modules/courses/new/CoursesNew.js
+++ b/public/react/src/modules/courses/new/CoursesNew.js
@@ -554,9 +554,9 @@ class CoursesNew extends Component {
                                         {getFieldDecorator("period",
                                           {
                                               rules:[{
-                                                  required:true,
+                                                  required:false,
                                                   pattern: new RegExp(/^[0-9]\d*$/, "g"),
-                                                  message: '不能小于0'
+                                                  message: ''
                                               }],
                                               getValueFromEvent: (event) => {
                                                   return event.target.value.replace(/\D/g,'')
@@ -573,9 +573,9 @@ class CoursesNew extends Component {
                                         {getFieldDecorator("credit",
                                           {
                                               rules:[{
-                                                  required:true,
+                                                  required:false,
                                                   pattern: new RegExp(/^[0-9]\d*$/, "g"),
-                                                  message: '不能小于0'
+                                                  message: ''
                                               }],
                                               getValueFromEvent: (event) => {
                                                   return event.target.value.replace(/\D/g,'')