diff --git a/changelog.md b/changelog.md
index 0487670a2..88bac7e89 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,6 +1,7 @@
 # 更新日志
 2.0(2020-07)
 - 复选下拉树和下拉列表添加showView和hideVIew方法
+- number_editor支持自动检测数值与范围是否合法
 - 修复了颜色选择器设置值为null的时候,trigger和popup表现不一致的问题
 
 2.0(2020-06)
diff --git a/src/widget/numbereditor/number.editor.js b/src/widget/numbereditor/number.editor.js
index 05292867d..c68cba4c2 100644
--- a/src/widget/numbereditor/number.editor.js
+++ b/src/widget/numbereditor/number.editor.js
@@ -6,16 +6,16 @@ BI.NumberEditor = BI.inherit(BI.Widget, {
     _defaultConfig: function () {
         return BI.extend(BI.NumberEditor.superclass._defaultConfig.apply(this, arguments), {
             baseCls: "bi-number-editor bi-border bi-focus-shadow",
-            validationChecker: function () {
-                return true;
-            },
+            validationChecker: BI.emptyFn,
             valueFormatter: function (v) {
                 return v;
             },
             value: 0,
             allowBlank: false,
             errorText: "",
-            step: 1
+            step: 1,
+            min: BI.MIN,
+            max: BI.MAX
         });
     },
 
@@ -27,7 +27,13 @@ BI.NumberEditor = BI.inherit(BI.Widget, {
             height: o.height - 2,
             allowBlank: o.allowBlank,
             value: o.valueFormatter(o.value),
-            validationChecker: o.validationChecker,
+            validationChecker: function (v) {
+                // 不设置validationChecker就自动检测
+                if(o.validationChecker === BI.emptyFn && !self._checkValueInRange(v)) {
+                    return false;
+                }
+                return o.validationChecker(v);
+            },
             errorText: o.errorText
         });
         this.editor.on(BI.TextEditor.EVENT_CHANGE, function () {
@@ -35,9 +41,11 @@ BI.NumberEditor = BI.inherit(BI.Widget, {
         });
         this.editor.on(BI.TextEditor.EVENT_ERROR, function () {
             o.value = BI.parseFloat(this.getLastValidValue());
+            self._checkAdjustDisabled(o.value);
         });
         this.editor.on(BI.TextEditor.EVENT_VALID, function () {
             o.value = BI.parseFloat(this.getValue());
+            self._checkAdjustDisabled(o.value);
         });
         this.editor.on(BI.TextEditor.EVENT_CONFIRM, function () {
             self.fireEvent(BI.NumberEditor.EVENT_CONFIRM);
@@ -96,6 +104,18 @@ BI.NumberEditor = BI.inherit(BI.Widget, {
         return this.editor.isEditing();
     },
 
+    _checkValueInRange: function(v) {
+        var o = this.options;
+        return !!(BI.isNumeric(v) && BI.parseFloat(v) >= o.min && BI.parseFloat(v) <= o.max);
+    },
+
+    _checkAdjustDisabled: function(v) {
+        if(this.options.validationChecker === BI.emptyFn) {
+            this.bottomBtn.setEnable(BI.parseFloat(v) > this.options.min);
+            this.topBtn.setEnable(BI.parseFloat(v) < this.options.max);
+        }
+    },
+
     // 微调
     _finetuning: function (add) {
         var v = BI.parseFloat(this.getValue());