Abstract: The late-maturing potato variety rather as a test material No.8,conducted a potato mulching,planting conventional flat kind of ridge cultivation,double-level kinds of ridge planting,straw mulching,planting a total of four different modes of comparative studies.The results showed that：a double line of flat ridge plant cultivated potato species best,regardless of the situation from potato emergence,plant growth,disease resistance and tuber yield and rate,the effects are obvious,relatively flat ridge species conventional plant cultivation（ck） yield 26.0%.Followed by plastic mulching,an increase of 10.8.Straw mulching effect is not obvious,only 6.9% yield.