Abstract: The papel expounds the origination and development of land evaluation.In recent years,land evaluation is developing from quatitative research to ard quantitative evaluation combined with social economic factors,and the land quality supply capacit is brought into the land evaluation namely,sufficient evaluation,which makes the evaluation target more concrete and the results more practieal.During the middle-late period of the 1980s,a Canadian,H.Shrcier did the sufficient evaluation of land in several river valle s in Nepal,proposed the relationship between the population gro th in the future and the demand for land suppl,predicted the future environment change caused b population growth.His research work merits the reference in the research on land capacity and local population demand.