diff --git a/components/form/demo/dynamic-form-item.md b/components/form/demo/dynamic-form-item.md
index aec56ac3e0..cb4fb35159 100644
--- a/components/form/demo/dynamic-form-item.md
+++ b/components/form/demo/dynamic-form-item.md
@@ -100,7 +100,6 @@ class DynamicFieldSet extends React.Component {
           <Icon
             className="dynamic-delete-button"
             type="minus-circle-o"
-            disabled={keys.length === 1}
             onClick={() => this.remove(k)}
           />
         ) : null}