diff --git a/apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/service/AppService.java b/apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/service/AppService.java
index 9e20dbb5b38d98265b3f1f330ee4234d1d865cc9..b77f36cbc3527afe0118f8bb48fe2a6c270ce5d1 100644
--- a/apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/service/AppService.java
+++ b/apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/service/AppService.java
@@ -89,7 +89,7 @@ public class AppService {
     App managedApp = appRepository.findByAppId(appId);
 
     if (managedApp != null) {
-      throw new BadRequestException(String.format("app id %s has existed!", app.getAppId()));
+      throw new BadRequestException(String.format("app id %s already exists!", app.getAppId()));
     } else {
       App createdApp = appRepository.save(app);
       namespaceService.createDefaultAppNamespace(appId);
diff --git a/apollo-portal/src/main/resources/static/app.html b/apollo-portal/src/main/resources/static/app.html
index 69ab38eb73c05cdc22a724e89fc1c556d7c38ba4..694de2a3a89f681f6478e3a2d16b5a15b071de02 100644
--- a/apollo-portal/src/main/resources/static/app.html
+++ b/apollo-portal/src/main/resources/static/app.html
@@ -42,7 +42,7 @@
                             <label class="col-sm-2 control-label"><apollorequiredfiled></apollorequiredfiled> 应用名称</label>
                             <div class="col-sm-5">
                                 <input type="text" class="form-control" name="appName" ng-model="app.name" required>
-                                <small>(格式 xx-yy-zz,不能使用'+'字符 例:apollo-server)</small>
+                                <small>(建议格式 xx-yy-zz 例:apollo-server)</small>
                             </div>
                         </div>
                         <div class="form-group">