diff --git a/sig-multitenancy/OWNERS b/sig-multitenancy/OWNERS
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diff --git a/sig-multitenancy/README.md b/sig-multitenancy/README.md
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+# Multi-tenancy Special Interest Group
+
+The Multi-tenancy SIG is to design and develop the resource and identity management of KubeSphere in terms of tenancy.
+
+## Members
+
+- Hongming Wan ([@wansir]((https://github.com/wansir))), Lead
+
+## Meetings
+
+[Meeting notes](https://docs.google.com/document/d/1Ewf30_Z6mlIxpJH-qF96c_mx96UaQtLi-fCf6m1r_yg/)
+
+## Contact
+
+- Slack [#sig-multitenancy](https://kubesphere.slack.com/messages/sig-multitenancy)
diff --git a/sigs.md b/sigs.md
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--- a/sigs.md
+++ b/sigs.md
@@ -43,7 +43,7 @@ The SIGs at present are:
 | [Installation](./sig-installation) | [Feng Guo](https://github.com/pixiake) | [#sig-installation](https://kubesphere.slack.com/messages/sig-installation) | [Notes](https://docs.google.com/document/d/1sXMKViZ5cchbaBajRZiJsaSdMAQ1GpmDKCcq3UwT3Vg/) | KubeSphere installer and deployment |
 | [Microservice management](./sig-microservice) | [Jeff Zhang](https://github.com/zryfish) | [#sig-microservice](https://kubesphere.slack.com/messages/sig-microservice) | [Notes](https://docs.google.com/document/d/1eAAbdIxJwFgNjkU9xvQ8SrezW7pHgPryzOAPjZYjvFg/) | architecture, microservice governance |
 | [Multi-cluster](./sig-multicluster) | [Jeff Zhang](https://github.com/zryfish) | [#sig-multicluster](https://kubesphere.slack.com/messages/sig-multicluster) | [Notes](https://docs.google.com/document/d/1P0NaJbAYTK4BnMazJcrc4he-sh2YpZNvG1rkPQrNhpY/) | multi-cluster management |
-| Multi-tenancy| [Hongming Wan](https://github.com/wansir) | [#multitenancy](https://kubesphere.slack.com/archives/CLHL8R1C7) | [Notes](https://github.com/kubesphere/kubesphere/issues?q=is%3Aopen+is%3Aissue+label%3Aarea%2Fmonitoring+) | workspace, IAM |
+| [Multi-tenancy](./sig-multitenancy) | [Hongming Wan](https://github.com/wansir) | [#sig-multitenancy](https://kubesphere.slack.com/messages/sig-multitenancy) | [Notes](https://docs.google.com/document/d/1Ewf30_Z6mlIxpJH-qF96c_mx96UaQtLi-fCf6m1r_yg/) | workspace, IAM |
 | Network | [Zhengyi Lai](https://github.com/zheng1) | [#network](https://kubesphere.slack.com/archives/CLHL8R1C7) | [Notes](https://github.com/kubesphere/kubesphere/issues?q=is%3Aopen+is%3Aissue+label%3Aarea%2Fmonitoring+) | network policy, CNI plugins, SDN |
 | Observability | [Benjamin Huo](https://github.com/benjaminhuo) | [#observability](https://kubesphere.slack.com/archives/CLHL8R1C7) | [Notes](https://github.com/kubesphere/kubesphere/issues?q=is%3Aopen+is%3Aissue+label%3Aarea%2Fmonitoring+) | Logging, Monitoring, Alerting, Notification |
 | Release | [Calvin Yu](https://github.com/calvinyv) | [#release](https://kubesphere.slack.com/archives/CLHL8R1C7) | [Notes](https://github.com/kubesphere/kubesphere/issues?q=is%3Aopen+is%3Aissue+label%3Aarea%2Fmonitoring+) | release of each version |