Abstract: A two-layer primitive equation model is developed in this paper.The capabilities of this model are tested by the use of multiyearly averaged January and July sea surface level pressure fields and wind fields which can be diagnosed from the pressure fields . The results show that the ocean surface currents and undercurrents in the subsurface layer driven by the sea surface wind and the sea surface pressure are close to the observation.The results are also compared with that of the IAP OGCM and the OSU OGCM.