diff --git a/README.md b/README.md
index 43a14fb..6975fa3 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,12 @@
 
 **言語 / Language**: [English](README_EN.md) | [中文](README_CN.md)
 
+## デモ動画
+
+[![uCosyVoice Demo](https://img.youtube.com/vi/uXbTALX16FE/maxresdefault.jpg)](https://youtu.be/uXbTALX16FE)
+
+▶️ クリックしてYouTubeで視聴
+
 ## 特徴
 
 - **完全なTTSパイプライン**: テキスト正規化 → BPEトークン化 → LLM → Flow Matching → HiFTボコーダー
diff --git a/README_CN.md b/README_CN.md
index e9e99e5..db8403f 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -7,6 +7,12 @@
 
 **语言**: [日本語](README.md) | [English](README_EN.md)
 
+## 演示视频
+
+[![uCosyVoice Demo](https://img.youtube.com/vi/uXbTALX16FE/maxresdefault.jpg)](https://youtu.be/uXbTALX16FE)
+
+▶️ 点击在YouTube上观看
+
 ## 特性
 
 - **完整的TTS流水线**：文本规范化 → BPE分词 → LLM → Flow Matching → HiFT声码器
diff --git a/README_EN.md b/README_EN.md
index 2c1ff1e..8c3652a 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -7,6 +7,12 @@ Unity implementation of [CosyVoice3](https://github.com/FunAudioLLM/CosyVoice) t
 
 **Language**: [日本語](README.md) | [中文](README_CN.md)
 
+## Demo Video
+
+[![uCosyVoice Demo](https://img.youtube.com/vi/uXbTALX16FE/maxresdefault.jpg)](https://youtu.be/uXbTALX16FE)
+
+▶️ Click to watch on YouTube
+
 ## Features
 
 - **Full TTS Pipeline**: Text normalization → BPE tokenization → LLM → Flow Matching → HiFT vocoder