diff --git a/src/main.js b/src/main.js
index b4b8f57ad..dd100ae16 100644
--- a/src/main.js
+++ b/src/main.js
@@ -109,6 +109,7 @@ router.beforeEach(function (to, from, next) {
   if (isMobile()) {
     if ((token === null || token === '' ) && toName !== 'Login') {
       if(toName !== 'phoneIndex'){
+        sessionStorage.removeItem("param");
         sessionStorage.setItem('param',JSON.stringify(param4))
         next('/phoneIndex')
       }else {