diff --git a/runtime_ci b/runtime_ci
new file mode 100644
index 0000000000000000000000000000000000000000..f8b929410f0e41bed0ce2ba1e33954c04b9534b2
--- /dev/null
+++ b/runtime_ci
@@ -0,0 +1 @@
+test runtime ci
diff --git a/tools/setup_tools.sh b/tools/setup_tools.sh
index 8d6efbeb075d9aee442174c5de9a21750f130e68..f9d1ad31af5f09b1ba6ab40e68aa20e9c0af3440 100755
--- a/tools/setup_tools.sh
+++ b/tools/setup_tools.sh
@@ -75,6 +75,14 @@ if [ ! -f $MAPLE_ROOT/third_party/d8/lib/d8.jar ]; then
   echo Downloaded AOSP.
 fi
 
+if [ ! -d $MAPLE_ROOT/third_party/icu ]; then
+  cd $TOOLS
+  git clone https://gitee.com/xlnb/icu4c.git
+  mkdir -p $MAPLE_ROOT/third_party/icu
+  cp -r icu4c/lib/ $MAPLE_ROOT/third_party/icu/
+  echo Download icu4c libs
+fi
+
 # download and build andriod source
 if [ ! -d $ANDROID_DIR/out/target/product/generic_arm64/obj ]; then
   mkdir -p $ANDROID_SRCDIR