diff --git a/src/image-preview/README.md b/src/image-preview/README.md
index bd5b76290..e0f755350 100644
--- a/src/image-preview/README.md
+++ b/src/image-preview/README.md
@@ -58,7 +58,7 @@ setTimeout(() => {
   :images="images"
   @change="onChange"
 >
-  <template v-slot:index>Page: { index }</template>
+  <template v-slot:index>Page: {{ index }}</template>
 </van-image-preview>
 ```
 
diff --git a/src/image-preview/README.zh-CN.md b/src/image-preview/README.zh-CN.md
index 42cd66965..7c45c1035 100644
--- a/src/image-preview/README.zh-CN.md
+++ b/src/image-preview/README.zh-CN.md
@@ -68,7 +68,7 @@ setTimeout(() => {
   :images="images"
   @change="onChange"
 >
-  <template v-slot:index>第{ index }页</template>
+  <template v-slot:index>第{{ index }}页</template>
 </van-image-preview>
 ```