[Objective] To study the fresh-keeping technology of vegetable-used sweetpotato as well as improve its storage and fresh-keeping period.[Method] Shulyu No.1 and Fushu 7-6 were selected to explore effects of different fresh-keeping films and storage temperature on the fresh-keeping period. [Result]Under the condition of no packaging film,Shulyu No.1 and Fushu 7-6 exhibited the largest and fastest water loss over time at room temperature 25 ℃ and the rate of water loss reached 41.22% and 36.90%. At the temper...