diff --git a/packages/tabs/index.vue b/packages/tabs/index.vue
index a08ba73d0..4187aad71 100644
--- a/packages/tabs/index.vue
+++ b/packages/tabs/index.vue
@@ -423,6 +423,10 @@ export default create({
         }
       }
 
+      if (this.scrollable) {
+        style.flexBasis = 88 / (this.swipeThreshold) + '%';
+      }
+
       return style;
     }
   }