diff --git a/examples/routers/input-number.vue b/examples/routers/input-number.vue
index 0caa16d5..b916d405 100644
--- a/examples/routers/input-number.vue
+++ b/examples/routers/input-number.vue
@@ -41,7 +41,7 @@
 
 <template>
     <div>
-        <InputNumber :max="1000000000" :min="1" v-model="value1" :formatter="formatter" :parser="parser" @on-change="change" style="width: 200px"></InputNumber>
+        <!-- <InputNumber :max="1000000000" :min="1" v-model="value1" :formatter="formatter" :parser="parser" @on-change="change" style="width: 200px"></InputNumber>
         <InputNumber :max="1000000000" :min="1" v-model="value2" :formatter="formatter2" :parser="parser2" @on-change="change" style="width: 200px"></InputNumber>
         
         <InputNumber @on-change="change" style="width: 200px"></InputNumber>
@@ -51,7 +51,10 @@
                 
         <InputNumber v-model="value2" @on-focus="focus" style="width: 200px"></InputNumber>
 
-        <InputNumber v-model="value3" style="width: 200px" placeholder="Enter something..."></InputNumber>
+        <InputNumber v-model="value3" style="width: 200px" placeholder="Enter something..."></InputNumber> -->
+
+        
+        <InputNumber v-model="valueNull" style="width: 200px" :min='0' :max='10000'  :precision='2' ></InputNumber>
     </div>
 </template>
 <script>
diff --git a/src/components/input-number/input-number.vue b/src/components/input-number/input-number.vue
index 7eb24c6d..19148de1 100644
--- a/src/components/input-number/input-number.vue
+++ b/src/components/input-number/input-number.vue
@@ -181,6 +181,7 @@
             },
             precisionValue () {
                 // can not display 1.0
+                if(!this.currentValue) return this.currentValue;
                 return this.precision ? this.currentValue.toFixed(this.precision) : this.currentValue;
             },
             formatterValue () {
@@ -247,7 +248,10 @@
             },
             setValue (val) {
                 // 如果 step 是小数，且没有设置 precision，是有问题的
-                if (!isNaN(this.precision)) val = Number(Number(val).toFixed(this.precision));
+                if(val){
+                    if (!isNaN(this.precision)) val = Number(Number(val).toFixed(this.precision));
+                }
+                
 
                 this.$nextTick(() => {
                     this.currentValue = val;