diff --git a/sigs/compiler/README.md b/sigs/compiler/README.md
index 9a61f78..9cec423 100644
--- a/sigs/compiler/README.md
+++ b/sigs/compiler/README.md
@@ -27,4 +27,5 @@ This is the working repo for the Compiler special interest group (SIG). This rep
 
 * [Tuesday May 18, 2020](./meetings/001-20200518.md)
 * [Friday June 05, 2020](./meetings/002-20200605.md)
-* [Thursday June 10, 2021](./meetings/003-20210610.md)
\ No newline at end of file
+* [Thursday June 10, 2021](./meetings/003-20210610.md)
+* [Tuesday August 10, 2021](./meetings/004-20210810.md)
diff --git a/sigs/compiler/meetings/004-20210810.md b/sigs/compiler/meetings/004-20210810.md
new file mode 100644
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--- /dev/null
+++ b/sigs/compiler/meetings/004-20210810.md
@@ -0,0 +1,40 @@
+# Tuesday August 10, 2021 at 07:00pm GMT+8
+
+## Agenda
+
+- Automatic differentiation and scientific computation.
+
+- The current status control flow.
+
+- The optimization of error message in graph compilation.
+
+## Conference links
+
+https://welink.zhumu.com/j/135416073
+
+## Attendees
+
+- Jason Zhang(Huawei)
+- Felix Chen(Huawei)
+- Frank Liang(Huawei)
+
+## Notes
+
+议题1：
+
+- 无遗留问题
+
+议题2：
+
+- 1.需要对控制流的支持现状补充文档和教程。
+
+议题3：
+
+- 1.需要明确编译报错改进策略，找浙大学生沟通，听取建议。
+
+## Action items
+
+- https://gitee.com/mind_spore/dashboard/issues?id=I4CMUP
+- https://gitee.com/mind_spore/dashboard/issues?id=I42792
+- https://gitee.com/mind_spore/dashboard/issues?id=I2CXMJ
+