The study was designedfor the purposes of controlling grassland degradation,protecting biological re sources,and keeping a benign cycle of ecology,society,and economy. With restoration ecology as a guide,a soil evaporation experiment was conducted to analyze the effects of different material covers on soil moisture in the typical steppe zone. Results show that gravel and hay covers can effectively inhibit soil evaporation. The inhibitory effect of hay covers is more significant than gravel in the whole evaporation process.