Abstract: Through investigation and research,combined with metamorphic buried hill oil reservoir characteristics of JZS oilfield,buried hill reservoir type classification has been proposed.According to the percolation characteristics of reservoir space reflected by the capillary pressure curve,and through calculation,the buried hill reservoir type of JZS oilfield has been determined,namely pore-fractured type.The application results show the method is simple and reliable,and it can provide guidance for field development well choose and for well pattern deployment.