diff --git a/README.md b/README.md
index 30f3aa3..fad4af9 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,8 @@
## Reinforcement Learning - 强化学习
台湾大学李宏毅公开课: [bilibili](https://www.bilibili.com/video/BV1XP4y1d7Bk/?spm_id_from=333.337.search-card.all.click&vd_source=ab9cf5374617c2867aaea34af29b53c9)
-EasyRL - 蘑菇书: [website](https://datawhalechina.github.io/easy-rl/#/)
+EasyRL - 蘑菇书: [website](https://datawhalechina.github.io/easy-rl/#/)
+强化学习的数学原理 - 赵世钰 - 西湖大学: [bilibili](https://space.bilibili.com/2044042934/channel/collectiondetail?sid=748665)
## Imitation Learning - 模仿学习
模仿学习简洁教程 - LAMDA - 南京大学: [PDF](https://www.lamda.nju.edu.cn/xut/Imitation_Learning.pdf)