diff --git a/examples/routers/input-number.vue b/examples/routers/input-number.vue
index 7fa9d907..a8ddd00a 100644
--- a/examples/routers/input-number.vue
+++ b/examples/routers/input-number.vue
@@ -54,8 +54,20 @@
         <InputNumber v-model="value3" style="width: 200px" placeholder="Enter something..."></InputNumber> -->
 
         
-        <InputNumber v-model="valueNull" style="width: 200px" :min='-1000' :max='10000'  :precision='2' ></InputNumber>
+        <InputNumber v-model="valueNull" style="width: 200px" :min='1' :max='10000'  :precision='2' ></InputNumber>
         <InputNumber v-model="valueNull" style="width: 200px" ></InputNumber>
+        <div style="margin:10px 0px">
+            <InputNumber
+                :max="10000"
+                v-model="value9"
+                :formatter="value => `$ ${value}`.replace(/B(?=(d{3})+(?!d))/g, ',')"
+                :parser="value => value.replace(/\$s?|(,*)/g, '')"></InputNumber>
+            <InputNumber
+                :max="100"
+                v-model="value10"
+                :formatter="value => `${value}%`"
+                :parser="value => value.replace('%', '')"></InputNumber>
+        </div>
     </div>
 </template>
 <script>
@@ -69,16 +81,18 @@
                 formatter: (value) => `$ ${value}`.replace(/\B(?=(\d{3})+(?!\d))/g, ','),
                 parser: (value) => value.replace(/\$\s?|(,*)/g, ''),
                 formatter2: (value) => `${value}%`,
-                parser2: (value) => value.replace('%', '')
-            }
+                parser2: (value) => value.replace('%', ''),
+                value9: 1000,
+                value10: 100
+            };
         },
         methods: {
             focus (e) {
-                e.target.select()
+                e.target.select();
             },
             change (v) {
-                console.log(v)
+                console.log(v);
             }
         }
-    }
+    };
 </script>
diff --git a/src/components/input-number/input-number.vue b/src/components/input-number/input-number.vue
index 897180e0..284aca84 100644
--- a/src/components/input-number/input-number.vue
+++ b/src/components/input-number/input-number.vue
@@ -250,13 +250,16 @@
             setValue (val) {
                 // 如果 step 是小数，且没有设置 precision，是有问题的
                 if (val && !isNaN(this.precision)) val = Number(Number(val).toFixed(this.precision));
-
+                
                 const {min, max} = this;
-                if (val > max) {
-                    val = max;
-                } else if (val < min) {
-                    val = min;
-                } 
+                if (val!==null) {
+                    if (val > max) {
+                        val = max;
+                    } else if (val < min) {
+                        val = min;
+                    } 
+                }
+                
                 this.$nextTick(() => {
                     this.currentValue = val;
                     this.$emit('input', val);
@@ -282,6 +285,7 @@
                 }
             },
             change (event) {
+                
                 if (event.type == 'input') return; 
                 let val = event.target.value.trim();
                 if (this.parser) {