diff --git a/README.md b/README.md
index 977ed61..10a47da 100644
--- a/README.md
+++ b/README.md
@@ -4,11 +4,11 @@
 
 | Target        |  CI Status  |
 | ------------- | :-----:|
-| Ubuntu18.04 x86-64   | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu18-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu18-v9.0.0-build.yaml) |
-| Ubuntu20.04 x86-64  | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu20-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu20-v9.0.0-build.yaml) |
-| Ubuntu22.04 x86-64  | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu22-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu22-v9.0.0-build.yaml) |
-| Ubuntu24.04 x86-64  | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu24-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu24-v9.0.0-build.yaml) |
-| Ubuntu latest x86-64  | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu-latest-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu-latest-v9.0.0-build.yaml) |
+| Ubuntu18.04 x86_64   | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu18-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu18-v9.0.0-build.yaml) |
+| Ubuntu20.04 x86_64  | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu20-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu20-v9.0.0-build.yaml) |
+| Ubuntu22.04 x86_64  | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu22-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu22-v9.0.0-build.yaml) |
+| Ubuntu24.04 x86_64  | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu24-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu24-v9.0.0-build.yaml) |
+| Ubuntu latest x86_64  | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu-latest-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu-latest-v9.0.0-build.yaml) |
 | Ubuntu18.04 arrch64 | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu18-arrch64-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu18-arrch64-v9.0.0-build.yaml) |
 | Ubuntu20.04  arrch64 | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu20-arrch64-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu20-arrch64-v9.0.0-build.yaml) |
 | Ubuntu22.04 arrch64 | [![build v9.0.0](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu22-arrch64-v9.0.0-build.yaml/badge.svg?branch=v9.0.0)](https://github.com/minhanghuang/CyberRT/actions/workflows/ubuntu22-arrch64-v9.0.0-build.yaml) |
@@ -82,6 +82,16 @@ cyber_launch start share/examples/common_component_example/common.launch
 ./cyber/examples/common_component_example/channel_test_writer
 ```
 
+3. log directory(optional)
+
+**The Cyber log storage path is similar to `ROS` and is saved in `~/.cyber/log`**
+
+If you want to modify the log storage path, you can change the `GLOG_log_dir` environment variable as follows:
+
+```shell
+# export GLOG_log_dir=/path/to/cyber/log
+```
+
 ## #4 Tools
 
 1. channel
diff --git a/setup.bash.in b/setup.bash.in
index 5078550..4deded0 100644
--- a/setup.bash.in
+++ b/setup.bash.in
@@ -1,6 +1,7 @@
 #!/usr/bin/bash
 
 _SETUP_PATH=$(cd `dirname $BASH_SOURCE[0]`; pwd)
+USER_HOME_DIR=$(getent passwd $USER | cut -d: -f6)
 
 CYBERRT_PATH=$(dirname "$_SETUP_PATH")
 BUILD_PATH=$_SETUP_PATH
@@ -34,6 +35,13 @@ for entry in "${mainboard_path}" \
     export PATH="${entry}":$PATH
 done
 
+# create log dir
+CYBER_LOG_DIR_PREFIX="$USER_HOME_DIR/.cyber/log"
+if [ ! -d "$CYBER_LOG_DIR_PREFIX" ]; then
+    mkdir -p "$CYBER_LOG_DIR_PREFIX"
+fi
+
+export GLOG_log_dir="$CYBER_LOG_DIR_PREFIX"
 export GLOG_alsologtostderr=1
 export GLOG_colorlogtostderr=1
 export GLOG_minloglevel=0
diff --git a/setup.zsh.in b/setup.zsh.in
index 710d38c..4631712 100644
--- a/setup.zsh.in
+++ b/setup.zsh.in
@@ -1,6 +1,7 @@
 #!/usr/bin/bash
 
 _SETUP_PATH=$(cd `dirname $0`; pwd)
+USER_HOME_DIR=$(getent passwd $USER | cut -d: -f6)
 
 CYBERRT_PATH=$(dirname "$_SETUP_PATH") # CyberRT Path
 BUILD_PATH=$_SETUP_PATH # build path
@@ -35,6 +36,13 @@ for entry in "${mainboard_path}" \
     export PATH="${entry}":$PATH
 done
 
+# create log dir
+CYBER_LOG_DIR_PREFIX="$USER_HOME_DIR/.cyber/log"
+if [ ! -d "$CYBER_LOG_DIR_PREFIX" ]; then
+    mkdir -p "$CYBER_LOG_DIR_PREFIX"
+fi
+
+export GLOG_log_dir="$CYBER_LOG_DIR_PREFIX"
 export GLOG_alsologtostderr=1
 export GLOG_colorlogtostderr=1
 export GLOG_minloglevel=0