diff --git a/TODO b/TODO
new file mode 100644
index 000000000..ca4c31fc3
--- /dev/null
+++ b/TODO
@@ -0,0 +1,8 @@
+
+- emqx_connection
+  Biz message
+  Timeout message
+  Sys message
+  EXIT message
+  Batch Process
+  Postponed Queue