diff --git a/src/components/table/mixin.js b/src/components/table/mixin.js
index 1b4a6b4..7a06e24 100644
--- a/src/components/table/mixin.js
+++ b/src/components/table/mixin.js
@@ -25,7 +25,7 @@ export default {
                 width = this.columnsWidth[column._index].width;
             }
             // when browser has scrollBar,set a width to resolve scroll position bug
-            if (this.columns.length === index + 1 && top && this.$parent.bodyHeight !== 0) {
+            if (width && this.columns.length === index + 1 && top && this.$parent.bodyHeight !== 0) {
                 width += this.$parent.scrollBarWidth;
             }
             // when fixed type,reset first right fixed column's width
--
libgit2 0.21.4