diff --git a/bricks/form.js b/bricks/form.js
index f97eb79..7edc991 100644
--- a/bricks/form.js
+++ b/bricks/form.js
@@ -22,6 +22,10 @@ bricks.FieldGroup = class {
 				this.build_fields(form, dc, fields[i].fields);
 				parent.add_widget(dc);
 				dc = new bricks.DynamicColumn({mobile_cols:2});
+				dc.set_id(fields[i].name+'_box');
+				if (fields[i].disabled))
+					dc.disabled(true);
+				}
 			} else {
 				var box;
 				if (! form.opts.input_layout || form.opts.input_layout == 'VBox'){
@@ -42,6 +46,10 @@ bricks.FieldGroup = class {
 						height:'auto',
 						i18n:true});
 				box.add_widget(txt);
+				box.set_id(fields[i].name + '_box')
+				if (fields[i].disabled))
+					box.disabled(true);
+				}
 				var w = Input.factory(fields[i]);
 				if (w){
 					box.add_widget(w);
@@ -72,6 +80,10 @@ bricks.FormBody = class extends bricks.VScrollPanel {
 			},
 			...
 		]
+		exclusionfields:[
+			[a,b,c], # a,b,c互斥，a enabled，b,c必须disabled
+			[x,y]		# x,y互斥
+		]
 	}
 	*/
 	constructor(form, opts){
@@ -234,7 +246,28 @@ bricks.FormBase = class extends bricks.Layout {
 		}
 		return this.get_formdata();
 	}
-
+	toggle_disable(field_name, flg){
+		var w = bricks.getWidgetById(field_name + '_box', this);
+		if (! w) return;
+		w.disabled(flg);
+		if (flg) return;
+		this.exclusionfields.forEach(arr =>{
+			if （arr.include(field_name)){
+				arr.forEach(x => {
+					if (x!=field_name){
+						var w1 = bricks.getWidgetById(x + '_box', this);
+						if (w1) w1.disabled(! flg);
+					}
+				})
+			}
+		});
+	}
+	enable_field(field_name){
+		this.toggle_disable(field_name, false);
+	}
+	disable_field(field_name){
+		this.toggle_disable(field_name, true);
+	}
 	get_formdata(){
 		var data = new FormData();
 		var changed = false;