diff --git a/demo/js/base/button/demo.button.js b/demo/js/base/button/demo.button.js
index 39b27b716..420a47d77 100644
--- a/demo/js/base/button/demo.button.js
+++ b/demo/js/base/button/demo.button.js
@@ -376,12 +376,6 @@ Demo.Button = BI.inherit(BI.Widget, {
                     this.loaded();
                 }, 5 * 1000);
             },
-        }, {
-            type: "bi.button",
-            text: "图标的实现交给其他框架",
-            icon(element) {
-                element.append("<span>🧙</span>");
-            },
         }];
 
         return {
diff --git a/src/base/single/button/buttons/button.js b/src/base/single/button/buttons/button.js
index f9aa8586e..7a8ba672d 100644
--- a/src/base/single/button/buttons/button.js
+++ b/src/base/single/button/buttons/button.js
@@ -91,29 +91,20 @@
             }
 
             var iconInvisible = !o.loading && !o.iconCls;
-            if (BI.isPlainObject(o.icon)) {
+            if (BI.isPlainObject(o.icon) && !o.loading) {
                 this.icon = BI.createWidget(o.icon);
-                o.loading ? (this.icon.loading && this.icon.loading())
-                    : (this.icon.loaded && this.icon.loaded());
             } else {
-                if (!o.loading && BI.isFunction(o.icon)) {
-                    this.icon = BI.createWidget({
-                        type: "bi.layout",
-                    });
-                    o.icon(this.icon.element);
-                } else {
-                    this.icon = BI.createWidget({
-                        type: "bi.icon_label",
-                        cls: o.loading ? loadingCls : (o.iconCls || o.icon),
-                        width: this._const.iconWidth,
-                        height: lineHeight,
-                        lineHeight: lineHeight,
-                        // 不设置，自定义按钮无法居中
-                        iconWidth: o.iconWidth,
-                        iconHeight: o.iconHeight,
-                        invisible: iconInvisible,
-                    });
-                }
+                this.icon = BI.createWidget({
+                    type: "bi.icon_label",
+                    cls: o.loading ? loadingCls : (o.iconCls || o.icon),
+                    width: this._const.iconWidth,
+                    height: lineHeight,
+                    lineHeight: lineHeight,
+                    // 不设置，自定义按钮无法居中
+                    iconWidth: o.iconWidth,
+                    iconHeight: o.iconHeight,
+                    invisible: iconInvisible,
+                });
             }
 
             // 用于 whiteSpace
@@ -140,12 +131,12 @@
                 tgap: o.iconPosition === "top" ? o.iconGap : 0,
                 bgap: o.iconPosition === "bottom" ? o.iconGap : 0,
             };
-            var items = [this.icon, BI.extend({ el: this.text }, gapContainer)];
+            var items = [this.icon, BI.extend({el: this.text}, gapContainer)];
             if (isVertical(o.iconPosition)) {
                 layoutType = "bi.vertical";
             }
             if (o.iconPosition === "right" || o.iconPosition === "bottom") {
-                items = [BI.extend({ el: this.text }, gapContainer), this.icon];
+                items = [BI.extend({el: this.text}, gapContainer), this.icon];
             }
             // bi.center_adapt 作用：让 hgap 不影响 iconGap。
             BI.createWidget({
@@ -170,7 +161,7 @@
             });
 
             if (o.minWidth > 0) {
-                this.element.css({ "min-width": o.minWidth / BI.pixRatio + BI.pixUnit });
+                this.element.css({"min-width": o.minWidth / BI.pixRatio + BI.pixUnit});
             }
         },