diff --git a/README.md b/README.md
index 18317e01e8..30ca3dc4d4 100644
--- a/README.md
+++ b/README.md
@@ -165,3 +165,4 @@ and develop their own new semantic segmentation methods.
 - [MMOCR](https://github.com/open-mmlab/mmocr): A Comprehensive Toolbox for Text Detection, Recognition and Understanding.
 - [MMGeneration](https://github.com/open-mmlab/mmgeneration): A powerful toolkit for generative models.
 - [MIM](https://github.com/open-mmlab/mim): MIM Installs OpenMMLab Packages.
+- [MMFlow](https://github.com/open-mmlab/mmflow): OpenMMLab optical flow toolbox and benchmark.
diff --git a/README_zh-CN.md b/README_zh-CN.md
index d7cf65ce68..89d5a28159 100644
--- a/README_zh-CN.md
+++ b/README_zh-CN.md
@@ -160,6 +160,7 @@ MMSegmentation 是一个由来自不同高校和企业的研发人员共同参
 - [MMEditing](https://github.com/open-mmlab/mmediting): OpenMMLab 图像视频编辑工具箱
 - [MMOCR](https://github.com/open-mmlab/mmocr): OpenMMLab 全流程文字检测识别理解工具包
 - [MMGeneration](https://github.com/open-mmlab/mmgeneration): OpenMMLab 生成模型工具箱
+- [MMFlow](https://github.com/open-mmlab/mmflow): OpenMMLab 光流估计工具箱与测试基准
 
 ## 欢迎加入 OpenMMLab 社区
 
diff --git a/docs/conf.py b/docs/conf.py
index 50c425fdf7..6d1997ff26 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -147,6 +147,10 @@ def get_version():
                     'name': 'MMGeneration',
                     'url': 'https://github.com/open-mmlab/mmgeneration',
                 },
+                {
+                    'name': 'MMFlow',
+                    'url': 'https://github.com/open-mmlab/mmflow',
+                },
             ]
         },
         {
diff --git a/docs_zh-CN/conf.py b/docs_zh-CN/conf.py
index 4cb2bfb899..44acfd5a7c 100644
--- a/docs_zh-CN/conf.py
+++ b/docs_zh-CN/conf.py
@@ -147,6 +147,10 @@ def get_version():
                     'name': 'MMGeneration',
                     'url': 'https://github.com/open-mmlab/mmgeneration',
                 },
+                {
+                    'name': 'MMFlow',
+                    'url': 'https://github.com/open-mmlab/mmflow',
+                },
             ]
         },
         {