It researched on the physical condition and infiltration performance for various major forest types(Pinus koraiensis,Larix gmelinii,and weed trees),and waste grassland in Lianhua Lake reservoir area.The results showed that the declined order of maximum water storage was Larch>weed trees>Korean pine>waste grassland;the declined order of non-capillary porosity was Larch,Korean pine,weed trees,waste grassland.The soil infiltration rate in forest land was obviously higher than that in waste grassland.By using runoff plots,this paper discussed the correlation between runoff generation and sediment generation and interception factor in 4 runoff plots.The results showed that runoff generation yield and sediment yield generation had a significant correlation with rainfall and its intensity.Forest land and waste grassland had obvious runoff generation yield and sediment generation yield,this indicated that forest land had better function in water and soil conservation than waste grassland.