Building hillslope into terraced land is an important engineering measure for soil and water conservation in Ruhe watershed of Guyuan City.On the 15°～25° slope of the hilly area,Guyuan station of soil and water conservation chooses bench terrace as the main form of building hillslope into terraced land.The conservation bench terrace in the watershed has obtained remarkable benefits of foundation,economy,society,and ecology by elaborate planning and design after four year construction.The design factors for conservation bench terraces are expounded and their benefits are analyzed and calculated.