diff --git a/components/lib/inputnumber/InputNumber.vue b/components/lib/inputnumber/InputNumber.vue
index 21a1db15e..4f4861e7d 100755
--- a/components/lib/inputnumber/InputNumber.vue
+++ b/components/lib/inputnumber/InputNumber.vue
@@ -870,7 +870,8 @@ export default {
                     this.$refs.input.$el.setSelectionRange(selectionEnd, selectionEnd);
                 } else if (newLength === currentLength) {
                     if (operation === 'insert' || operation === 'delete-back-single') {
-                        const newSelectionEnd = selectionEnd + Number(this.isDecimalSign(value) || this.isDecimalSign(insertedValueStr));
+                        const re = /[.,]/g;
+                        const newSelectionEnd = selectionEnd + Number(re.test(value) || re.test(insertedValueStr));
 
                         this.$refs.input.$el.setSelectionRange(newSelectionEnd, newSelectionEnd);
                     } else if (operation === 'delete-single') {