The technology for processing yam is simple, as long as it is processed according to the specifications provided by the purchaser, processed into pieces or strips, cooked and dried for one day as finished products, and then packaged by the purchaser and exported directly from foreign trade. The yam processing does not use any pigments and additives, and it is a pure natural green food. Its products are crystal clear and translucent, with high degree of saccharification and good taste. It is an internationally recognized product. At present, the best processing type is Beijing 553. From the point of view of initial processing profits, the economic benefits are considerable. General sweet potato production area is only 0.50-0.60 yuan per kilogram on the market, and after processing into the potato pods, the purchase price is 5 yuan per kilogram. If the sweet potato production area and the foreign trade department set a good market in advance, the large-scale processing of the yam will undoubtedly provide farmers with a road to wealth.