diff --git a/zh-cn/application-dev/windowmanager/application-window-stage.md b/zh-cn/application-dev/windowmanager/application-window-stage.md
index 3fb2397711d5b0fe3e26c6e02241b31af37b6923..81b1b608ff3613bced648cb020b3806055bfe0d0 100644
--- a/zh-cn/application-dev/windowmanager/application-window-stage.md
+++ b/zh-cn/application-dev/windowmanager/application-window-stage.md
@@ -351,7 +351,7 @@ class MainAbility extends Ability {
        onWindowStageCreate(windowStage) {
            // 2. 创建悬浮窗。
            var windowClass = null;
-           window.create(this.context, "floatWindow", window.WindowType.TYPE_FlOAT, (err, data) => {
+           window.create(this.context, "floatWindow", window.WindowType.TYPE_FLOAT, (err, data) => {
                if (err.code) {
                    console.error('Failed to create the floatWindow. Cause: ' + JSON.stringify(err));
                    return;