diff --git a/sigs.yaml b/sigs.yaml
index f78c4dcb883eec3dd6e6d6c3fcae9ca4cf9d4ffb..4b115c8c5aec1bfc40b1b8ac403d3fed304a220a 100644
--- a/sigs.yaml
+++ b/sigs.yaml
@@ -37,3 +37,7 @@ sigs:
   repositories:
   - openGauss-server
   - openGauss-third_party
+- name: In-place-Update
+  repositories:
+  - openGauss-server
+  - openGauss-third_party
diff --git a/sigs/In-place-Update/OWNERS b/sigs/In-place-Update/OWNERS
new file mode 100644
index 0000000000000000000000000000000000000000..c27282e51806446a908c0d4dc6ab2b60e03c08c9
--- /dev/null
+++ b/sigs/In-place-Update/OWNERS
@@ -0,0 +1,9 @@
+maintainers:
+  - wang-jingle
+  - powerqy
+  - wuyuechuan
+committers:
+  - yangweiqiang
+  - tengtengsun
+  - pascal_zhou
+  - wu-siliang
diff --git a/sigs/In-place-Update/README.md b/sigs/In-place-Update/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..3c35df801769956899180098917ce24589f6a205
--- /dev/null
+++ b/sigs/In-place-Update/README.md
@@ -0,0 +1,34 @@
+# In-place Update
+当前，为了支持MVCC，openGauss将旧的元组放在堆页面上，并且在没有快照引用这些旧数据时依靠Vacuum机制清理旧的元组。当前这种存储方式有以下两个问题：
+
+- 堆页面存储了旧的元组, 浪费空间资源
+- vacuum会进入不同页面进行清理操作, 带来性能和IO的问题
+
+In-place Update引擎旨在通过原地更新解决数据和索引膨胀问题, 同时摆脱对Vacuum的依赖。
+
+
+# 组织会议
+- 公开的会议时间：北京时间，每周四下午，16点30~17点30
+
+# 成员
+### Maintainer列表
+- 王江[@wang-jingle](https://gitee.com/wang-jingle)，*wangjiang16@huawei.com*
+- 李强[@powerqy](https://gitee.com/powerqy)，*powerqy@gmail.com*
+- 吴岳川[@wuyuechuan](https://gitee.com/wuyuechuan)，*wuych9@mail2.sysu.edu.cn*
+
+### Committer列表
+- 杨维强[@yangweiqiang](https://gitee.com/yangweiqiang)，*wqyang@cmbchina.com*
+- 孙腾腾[@tengtengsun](https://gitee.com/tengtengsun)，*suntengteng@cmbchina.com*
+- 周伟[@pascal_zhou](https://gitee.com/pascal_zhou)，*pascal_zhou@cmbchina.com*
+- 吴斯亮[@wu-siliang](https://gitee.com/wu-siliang)，*wusiliang@cmbchina.com*
+
+
+# 联系方式
+- [邮件列表](https://mailweb.opengauss.org/postorius/lists/inplaceupdate.opengauss.org/)
+
+
+# 仓库清单
+仓库地址：
+- https://gitee.com/opengauss/openGauss-server
+- https://gitee.com/opengauss/openGauss-third_party
+
diff --git a/sigs/README.en.md b/sigs/README.en.md
index 7327b8536cbf579a51efc59433baaa2704f5c67b..4e8c0d6f652171fba64d4e83e2994d8f0fda5817 100644
--- a/sigs/README.en.md
+++ b/sigs/README.en.md
@@ -15,3 +15,4 @@
     | Security | Develop and maintain the security of the openGauss community. |
     | OM | operation and maintenance of the openGauss community. |
     | IoT | Develop and maintain the IoT capability of openGauss community. |
+    | In-place Update | Develop and maintain the in-place update engine of the openGauss community. |
diff --git a/sigs/README.md b/sigs/README.md
index 8ca8f83d6ad6670427b5e9fff683de3b60f3edf4..c7d533e9eafac14a31282db6922b254d19afedd5 100644
--- a/sigs/README.md
+++ b/sigs/README.md
@@ -15,3 +15,4 @@
     | Security | 负责openGauss社区安全的开发和维护。 |
     | OM | 负责openGauss社区部署和维护。 |
     | IoT | 负责openGauss社区IoT能力的开发和维护。 |
+    | In-place Update | 负责openGauss社区in-place update的开发和维护。 |