diff --git a/src/components/input-number/input-number.vue b/src/components/input-number/input-number.vue
index 196515f..638134c 100644
--- a/src/components/input-number/input-number.vue
+++ b/src/components/input-number/input-number.vue
@@ -24,6 +24,7 @@
                 @focus="focus"
                 @blur="blur"
                 @keydown.stop="keyDown"
+                @input="change"
                 @change="change"
                 :readonly="readonly || !editable"
                 :name="name"
@@ -38,9 +39,6 @@
     const prefixCls = 'ivu-input-number';
     const iconPrefixCls = 'ivu-icon';
 
-    function isValueNumber (value) {
-        return (/(^-?[0-9]+\.{1}\d+$)|(^-?[1-9][0-9]*$)|(^-?0{1}$)/).test(value + '');
-    }
     function addNum (num1, num2) {
         let sq1, sq2, m;
         try {
@@ -256,11 +254,13 @@
             change (event) {
                 let val = event.target.value.trim();
 
-                const max = this.max;
-                const min = this.min;
+                if (event.type == 'input' && val.match(/^\.$|\.$/)) return; // prevent fire early if decimal. If no more input the change event will fire later
+                if (event.type == 'change' && Number(val) === this.currentValue) return; // already fired change for input event
+
+                const {min, max} = this;
 
-                if (isValueNumber(val)) {
-                    val = Number(val);
+                val = Number(val);
+                if (!isNaN(val)) {
                     this.currentValue = val;
 
                     if (val > max) {
@@ -275,8 +275,8 @@
                 }
             },
             changeVal (val) {
-                if (isValueNumber(val) || val === 0) {
-                    val = Number(val);
+                val = Number(val);
+                if (!isNaN(val)) {
                     const step = this.step;
 
                     this.upDisabled = val + step > this.max;
--
libgit2 0.21.4