diff --git a/src/tree-select/demos/zhCN/check-strategy.demo.md b/src/tree-select/demos/zhCN/check-strategy.demo.md
index 4c327da7c07..e93469b69d5 100644
--- a/src/tree-select/demos/zhCN/check-strategy.demo.md
+++ b/src/tree-select/demos/zhCN/check-strategy.demo.md
@@ -5,7 +5,7 @@
   multiple
   cascade
   checkable
-  checkStrategy="parent"
+  check-strategy="parent"
   :options="options"
   :default-value="['Dig It', 'go']"
   @update:value="updateValue"