Abstract: Recently,the new version of the global ocean-atmosphere-land system(GOALS) has been developed at State Key Laboratory of Atmospheric Sciences and Geophysical Fluid Dynamics,Institute of Atmospheric Physics(LASG/IAP).It is a fully coupled model bet ween 40°S and 40°N latitudes where the ocean-atmosphere flux exchange has notany flux adjustment.A 40-year integration of the model shows that there is almost not climate drift.The climatic mean states of sea surface temperature(SST),wind stress,netenergy flux at surface, and precipitation in the tropic and subtropical Pacific,which is the mean averaged for the last 30-year simulations,were analyzed in comparison with observations.The results shown that the GOALS model reproduces some main characteristics of climate mean state in tropics.However,there still exist some large regional biases in the model if compared with observations.For examples,the simulated SST s in three regions of the equatorial western Pacific "warm pool",the eastern Pacific near the western coast of the South America,and the equatorial Indian Ocean are around 2℃ warmer than the observational data,and the cold "tong" in the equatorial eastern Pacific obviously spreads westward.The forming of those biases in the GOALS model is largely related to errors of wind stress and netenergy flux at the ocean surface.The SST bias,in turn,influences on the precipitation simulation.