diff --git a/Using-G-API-with-MS-ONNX-Runtime.md b/Using-G-API-with-MS-ONNX-Runtime.md
new file mode 100644
index 0000000..40f20d1
--- /dev/null
+++ b/Using-G-API-with-MS-ONNX-Runtime.md
@@ -0,0 +1,44 @@
+# Building G-API with Microsoft ONNX Runtime support
+
+* Build and install the ONNX RT (currently tested with v1.14.1):
+
+  ```bash
+  $ git clone --recursive https://github.com/microsoft/onnxruntime.git
+  $ cd onnxruntime
+  $ git checkout v1.14.1
+  $ git submodule update --init
+  $ ./build.sh --config Release --build_shared_lib --parallel \
+  $     --cmake_extra_defines CMAKE_INSTALL_PREFIX=/path-to-install-dir
+  $ cd build/Linux/Release
+  $ make install
+  ```
+
+* Then specify extra options to OpenCV CMake:    
+
+  ```bash
+  $ cmake /path-to-opencv -DWITH_ONNX=ON -DORT_INSTALL_DIR=/path-to-ort-install-dir
+  ```
+
+# Running G-API ONNX Tests
+
+When you build G-API with ONNX Runtime support, tests for inference are enabled and require `OPENCV_GAPI_ONNX_MODEL_PATH` to be set:
+```bash
+$ export OPENCV_TEST_DATA_PATH=/path-to-opencv-extra/testdata
+$ export OPENCV_GAPI_ONNX_MODEL_PATH=/path-to-onnx-models/
+```
+and [models](https://github.com/onnx/models) are downloaded using the commands:
+```bash
+$ git clone --recursive https://github.com/onnx/models.git
+$ cd models
+$ git lfs pull --include=path-to-desired-onnx-model --exclude=""
+```
+
+The following models are known to be required as for OpenCV 4.7:
+```bash
+git lfs pull --include vision/body_analysis/emotion_ferplus/model/emotion-ferplus-8.onnx --exclude=""
+git lfs pull --include vision/classification/squeezenet/model/squeezenet1.0-9.onnx --exclude=""
+git lfs pull --include vision/object_detection_segmentation/faster-rcnn/model/FasterRCNN-10.onnx --exclude=""
+git lfs pull --include vision/object_detection_segmentation/ssd-mobilenetv1/model/ssd_mobilenet_v1_10.onnx --exclude=""
+git lfs pull --include vision/object_detection_segmentation/tiny-yolov2/model/tinyyolov2-8.onnx --exclude=""
+git lfs pull --include vision/object_detection_segmentation/yolov3/model/yolov3-10.onnx --exclude=""
+```