diff --git a/src/components/button/button.ts b/src/components/button/button.ts
index 6b145da..21a791d 100644
--- a/src/components/button/button.ts
+++ b/src/components/button/button.ts
@@ -40,6 +40,7 @@ export class StarButton extends StarBaseElement {
   @property({type: String}) treatment = ''
   @property({type: String}) icon = 'bug'
   @property({type: String}) iconcolor = ''
+  @property({type: String}) fontsize = ''
 
   getBaseButton(): HTMLTemplateResult {
     return html`
@@ -59,9 +60,16 @@ export class StarButton extends StarBaseElement {
   }
 
   getIconOnlyButton(): HTMLTemplateResult {
-    return html`
+    if(this.fontsize){
+      return html`
+      <button data-icon=${this.icon} style="font-size:${this.fontsize}"></button>
+    `
+    }else {
+      return html`
       <button data-icon=${this.icon}></button>
     `
+    }
+    
   }
 
   getConfirmButton(): HTMLTemplateResult {
diff --git a/src/test/panels/button/button.ts b/src/test/panels/button/button.ts
index b99e107..a2bd6ec 100644
--- a/src/test/panels/button/button.ts
+++ b/src/test/panels/button/button.ts
@@ -10,7 +10,7 @@ export class PanelButton extends LitElement {
     return html`
       <star-ul type="onlyheader" title="图标按钮">
         <star-li type="base">
-          <star-button type="icononly" icon="delete"></star-button>
+          <star-button type="icononly" icon="delete" fontsize="30px"></star-button>
           <star-button type="icononly" icon="settings"></star-button>
         </star-li>
       </star-ul>