Using laboratory artificial simulation rainfall experiment,the runoff process was observed on the scale of runoff plot,and the change process of soil volume moisture content was observed with Watchdog 1400 soil moisture automatic monitoring station to study the water infiltration characteristics of the slope under litter cover. The results were as follows:(1) The lag time of soil infiltration increases with the increase of litter coverage,and the slope was 10°>5°; (2) The infiltration rate of soil increases with the increase of rainfall intensity and litter coverage,and decreases with the increase of slope; the soil water storage first increases and then decreases with the increase of coverage,and the rainfall intensity is 120 mm/h>60 mm/h; (3) Stepwise regression shows that the soil infiltration lag time,infiltration rate and water storage capacity are linearly related to the amount of litter coverage,the lag time,infiltration rate and litter coverage are positively correlated with each other,the water storage and coverage has a quadratic function. The results can provide a basis for the research on the water source conservation function of the low-efficiency forest litter of Pinus massoniana.