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In desert, the climate is hot and dry, the vegetation is sparse, the land surface physical processes are significantly different from those in other regions. By using the data measured in Badanjilin desert, several key land surface parameters were revised. We established a Desert Land Surface Model (DLSM). The model was compared with Noah land surface model and observation data. In this study, the Badanjilin desert surface albedo is 0.273, the emissivity is 0.950, surface roughness is 1.55X10(-3) m, the soil heat capacity is 1.08X10(6) J . m(-3) . K-1 and diffusivity is 3.34X10(-7) m(2) . s. Radiation transfer, sensible heat transfer and soil heat conduction are the key physical processes affecting land surface energy balance. With adequate parameterization of these three processes, the DLSM reasonably simulates the land atmosphere interaction processes over Bandanjilin desert. The root mean square errors of modeled solar radiation flux, longwave radiation flux and sensible heat flux were 7.98, 6.14, 33.9 W . m(-2) respectively, which were comparable with the results, 7.98, 7.72, 46.6 W . m(-2), from NOAH. Surface albedo is the most important land surface parameter in desert. By increasing 5% of the albedo, the reflected solar radiation increased by 5%, and the sensible heat flux decreased by 2.83%. The results are beneficial to the study on land surface parameterization, modeling and climate simulation.