diff --git a/pkgs/development/python-modules/mmcv/default.nix b/pkgs/development/python-modules/mmcv/default.nix
new file mode 100644
index 000000000000..40efd7589f21
--- /dev/null
+++ b/pkgs/development/python-modules/mmcv/default.nix
@@ -0,0 +1,122 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytestCheckHook
+, pythonOlder
+, torch
+, torchvision
+, opencv4
+, yapf
+, packaging
+, pillow
+, addict
+, ninja
+, which
+, onnx
+, onnxruntime
+, scipy
+, pyturbojpeg
+, tifffile
+, lmdb
+, symlinkJoin
+}:
+
+let
+  inherit (torch) cudaCapabilities cudaPackages cudaSupport;
+  inherit (cudaPackages) backendStdenv cudaVersion;
+
+  cuda-common-redist = with cudaPackages; [
+    cuda_cccl # <thrust/*>
+    libcublas # cublas_v2.h
+    libcusolver # cusolverDn.h
+    libcusparse # cusparse.h
+  ];
+
+  cuda-native-redist = symlinkJoin {
+    name = "cuda-native-redist-${cudaVersion}";
+    paths = with cudaPackages; [
+      cuda_cudart # cuda_runtime.h
+      cuda_nvcc
+    ] ++ cuda-common-redist;
+  };
+
+  cuda-redist = symlinkJoin {
+    name = "cuda-redist-${cudaVersion}";
+    paths = cuda-common-redist;
+  };
+
+in
+buildPythonPackage rec {
+  pname = "mmcv";
+  version = "1.7.1";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "open-mmlab";
+    repo = pname;
+    rev = "refs/tags/v${version}";
+    hash = "sha256-b4MLBPNRCcPq1osUvqo71PCWVX7lOjAH+dXttd4ZapU";
+  };
+
+  preConfigure = ''
+    export MMCV_WITH_OPS=1
+  '' + lib.optionalString cudaSupport ''
+    export CC=${backendStdenv.cc}/bin/cc
+    export CXX=${backendStdenv.cc}/bin/c++
+    export TORCH_CUDA_ARCH_LIST="${lib.concatStringsSep ";" cudaCapabilities}"
+    export FORCE_CUDA=1
+  '';
+
+  postPatch = ''
+    substituteInPlace setup.py --replace "cpu_use = 4" "cpu_use = $NIX_BUILD_CORES"
+  '';
+
+  preCheck = ''
+    # remove the conflicting source directory
+    rm -rf mmcv
+  '';
+
+  # test_cnn test_ops really requires gpus to be useful.
+  # some of the tests take exceedingly long time.
+  # the rest of the tests are disabled due to sandbox env.
+  disabledTests = [
+    "test_cnn"
+    "test_ops"
+    "test_fileclient"
+    "test_load_model_zoo"
+    "test_processing"
+    "test_checkpoint"
+    "test_hub"
+    "test_reader"
+  ];
+
+  nativeBuildInputs = [ ninja which ]
+    ++ lib.optionals cudaSupport [ cuda-native-redist ];
+
+  buildInputs = [ torch ] ++ lib.optionals cudaSupport [ cuda-redist ];
+
+  nativeCheckInputs = [ pytestCheckHook torchvision lmdb onnx onnxruntime scipy pyturbojpeg tifffile ];
+
+  propagatedBuildInputs = [
+    torch
+    opencv4
+    yapf
+    packaging
+    pillow
+    addict
+  ];
+
+  pythonImportsCheck = [
+    "mmcv"
+  ];
+
+  meta = with lib; {
+    description = "A Foundational Library for Computer Vision Research";
+    homepage = "https://github.com/open-mmlab/mmcv";
+    changelog = "https://github.com/open-mmlab/mmcv/releases/tag/v${version}";
+    license = with licenses; [ asl20 ];
+    maintainers = with maintainers; [ rxiao ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 1085080f0cb6..c334f4f89ce3 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -6078,6 +6078,8 @@ self: super: with self; {
     enablePython = true;
   });
 
+  mmcv = callPackage ../development/python-modules/mmcv { };
+
   mmh3 = callPackage ../development/python-modules/mmh3 { };
 
   mmpython = callPackage ../development/python-modules/mmpython { };