Soil water declining process in 0—100 cm soil layer in a sloping field after rainfall was analyzed.Results indicated that soil water redistributions for different cultivations appeared similarly and the content of soil water within 10 cm of soil surface quickly decreased after infiltration.The content of soil water in 20—60 cm soil layer increased at the beginning and then decreased.The content of soil water below 60 cm changed appreciably.Soil water redistribution was affected differently by varied cultivations.Water retaining effects of film mulching were best in ridge tillage and worst in bared field.