Abstract: Longde County cold climate, soil mulching planting potato harvesting time,usually in late July,in the film conventionally grown and harvested in mid-September, May-July is off-season market supply.In order to meet the market consumption, Longde County, in the full study of argumentation on the basis of early spring, launched by the cultivation of Early Maturing Potato,comparable in the plastic film mulching cultivation of Early Maturing Potato 30 days earlier than in the conventional cultivation listed, late-maturing potatoes 90 days ahead of schedule to appear on the market,each of the 667m2, production value 2000 yuan of above,gained good economic benefits.At the same time, the potato harvest can be multiple cropping early maturing cabbage,celery, spinach,increasing the unit area benefit.