Abstract: [Objective] The project aims to verify the model performance of CoLM for the simulation on the typical oasis cropland ecosystem in Xinjiang,and analyze the characteristic of the land surface process.[Method] Two years of meteorological data from 2009 to 2010 in CN-Wul station were used to drive the land surface model,verify the model accuracy in this cropland site,and analyze the energy distribution characteristics,the daily and seasonal variations of this cropland ecosystem.[Result] The results showed that the energy flux:Rnet ＞ Qle ＞ Qh,the latent heat flux was the main part of the energy distribution;CoLM showed a good performance to the typical cropland ecosystem.[Conclusion] This land surface model can correctly describe the diurnal variation and seasonal variation of the energy flux,but of sensible heat flux in the field growth season is not ideal,because the simulation value is higher than that of the observations.