diff --git a/packages/rate/src/index.vue b/packages/rate/src/index.vue
index 4daafb2294..4014848f5e 100644
--- a/packages/rate/src/index.vue
+++ b/packages/rate/src/index.vue
@@ -192,9 +192,9 @@ export default defineComponent({
     const classes = computed(() => {
       let result = Array(props.max)
       let threshold = currentValue.value
-      if (props.allowHalf && currentValue.value !== Math.floor(currentValue.value)) {
-        threshold--
-      }
+      // if (props.allowHalf && currentValue.value !== Math.floor(currentValue.value)) {
+      //   threshold--
+      // }
       result.fill(activeClass.value, 0, threshold)
       result.fill(voidClass.value, threshold, props.max)
       return result
diff --git a/website/docs/zh-CN/rate.md b/website/docs/zh-CN/rate.md
index 471459da23..2ad1d6c4c3 100644
--- a/website/docs/zh-CN/rate.md
+++ b/website/docs/zh-CN/rate.md
@@ -32,6 +32,26 @@
 ```
 :::
 
+### 允许半选
+:::demo 为组件设置 `allow-half` 允许出现半星
+```html
+
+<div class="block">
+  <el-rate  v-model="value"  allow-half />
+</div>
+
+<script>
+  export default {
+    data() {
+      return {
+        value: null
+      }
+    }
+  }
+</script>
+```
+:::
+
 ### 辅助文字
 
 用辅助文字直接地表达对应分数