diff --git a/src/components/input-number/input-number.vue b/src/components/input-number/input-number.vue
index 19148de1..d2ab498d 100644
--- a/src/components/input-number/input-number.vue
+++ b/src/components/input-number/input-number.vue
@@ -248,11 +248,8 @@
             },
             setValue (val) {
                 // 如果 step 是小数，且没有设置 precision，是有问题的
-                if(val){
-                    if (!isNaN(this.precision)) val = Number(Number(val).toFixed(this.precision));
-                }
+                if (val && !isNaN(this.precision)) val = Number(Number(val).toFixed(this.precision));
                 
-
                 this.$nextTick(() => {
                     this.currentValue = val;
                     this.$emit('input', val);