diff --git a/.gitignore b/.gitignore
index 9b59c1d4dd..20c08e65eb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -44,8 +44,7 @@ local.properties
 
 /third_party
 /out
-cmake-build-debug
-cmake-build-release
+cmake-build-*
 node_modules
 Build/
 test/out/
diff --git a/web/README.md b/web/README.md
index a150fece30..2a6d0f94cf 100644
--- a/web/README.md
+++ b/web/README.md
@@ -107,9 +107,7 @@ $ npm install
 
 ### Debug
 
-Remove `cmake-build-debug` folder that in libpag root folder, run `build.sh debug` to build `libpag.wasm` file.
-
-If you use CLion IDE, you cloud reload the project by `Tools->CMake->Reload CMake Project`.
+Execute `build.sh debug` to get `libpag.wasm` file.
 
 ```bash
 # ./web/script/
@@ -140,3 +138,11 @@ $ cd script
 $ chmod +x ./build.sh
 $ ./build.sh
 ```
+
+### Build with CLion
+
+Create a new profile, and use the following **CMake options**（find them under **CLion** > **Preferences** > **Build, Execution, Deployment** > **CMake**）
+
+```
+CMAKE_TOOLCHAIN_FILE=path/to/emscripten/emscripten/version/cmake/Modules/Platform/Emscripten.cmake
+```
diff --git a/web/README.zh_CN.md b/web/README.zh_CN.md
index 111270a228..c9537eb243 100644
--- a/web/README.zh_CN.md
+++ b/web/README.zh_CN.md
@@ -110,7 +110,7 @@ $ npm install
 
 ### 开发流程
 
-删除项目根目录的 `cmake-build-debug`，执行 `build.sh debug` 打包 C++ 代码，每次改动 C++ 代码都需要重新打包新的 `libpag.wasm` 文件，执行完成之后可以通过 `Tools->CMake->Reload CMake Project` 刷新项目
+执行 `build.sh debug` 来获得 `libpag.wasm` 文件
 
 ```bash
 # web/script目录下
@@ -147,3 +147,11 @@ $ chmod +x ./build.sh
 # 打包
 $ ./build.sh
 ```
+
+### CLion 编译
+
+创建一个新的 profile，然后使用下面的 **CMake options**（位置在 **CLion** > **Preferences** > **Build, Execution, Deployment** > **CMake**）
+
+```
+CMAKE_TOOLCHAIN_FILE=path/to/emscripten/emscripten/version/cmake/Modules/Platform/Emscripten.cmake
+```
diff --git a/web/script/build.sh b/web/script/build.sh
index cedaa0c01a..a25149527d 100755
--- a/web/script/build.sh
+++ b/web/script/build.sh
@@ -13,16 +13,14 @@ fi
 RELEASE_CONF="-Oz -s"
 CMAKE_BUILD_TYPE=Relese
 if [[ $@ == *debug* ]]; then
-  BUILD_DIR=../../cmake-build-debug
   CMAKE_BUILD_TYPE=Debug
   RELEASE_CONF="-O0 -g3 -s SAFE_HEAP=1"
   BUILD_TS=""
 fi
 
-emcmake cmake -S $SOURCE_DIR -B $BUILD_DIR \
-  -DCMAKE_BUILD_TYPE="$CMAKE_BUILD_TYPE"
+emcmake cmake -S $SOURCE_DIR -B $BUILD_DIR -G Ninja -DCMAKE_BUILD_TYPE="$CMAKE_BUILD_TYPE"
 
-cmake --build $BUILD_DIR --target pag -- -j 12
+cmake --build $BUILD_DIR --target pag
 
 emcc $RELEASE_CONF -std=c++17 \
   -I$SOURCE_DIR/include/ \