diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2d8e0ab..950e354 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@
 
 - 切换后端时销毁非当前后端的网页窗口，保留登录会话但不再保活其 renderer。
 - 移除悬浮球点击录音和常驻显示功能，悬浮球仅用于显示语音会话状态。
+- 缩短正常完成后的绿色状态显示时间。
 
 ## [0.1.10] - 2026-08-23
 
diff --git a/src/main/session-controller.ts b/src/main/session-controller.ts
index 2f76647..82eb044 100644
--- a/src/main/session-controller.ts
+++ b/src/main/session-controller.ts
@@ -6,6 +6,8 @@ import type { BackendManager } from './backend-manager';
 import type { FcitxBridge } from './fcitx-bridge';
 import type { OverlayController } from './overlay-controller';
 
+const COMPLETION_INDICATOR_DURATION_MS = 450;
+
 export class SessionController extends EventEmitter {
   state: SessionState = 'idle';
   private mirroredText = '';
@@ -97,7 +99,7 @@ export class SessionController extends EventEmitter {
     this.state = 'idle';
     this.mirroredText = '';
     this.overlay.showState('done');
-    this.overlay.hideLater();
+    this.overlay.hideLater(COMPLETION_INDICATOR_DURATION_MS);
     this.emitState();
   }