The preservation effects of different storage temperatures (0，5，10，15 ℃) on ipomoea aquatica was studied on sensory evaluation, vitamin C, water migration by low-field nuclear magnetic resonance (LF-NMR) technique, etc.. The results show that the chilling injury happened easily under 0 ℃ cold store and senescence accelerated under 15 ℃. Under 5 ℃ and 10 ℃, the sensory quality, the content of chlorophyll, vitamin Cand other quality indexes of ipomoea aquaticawere maintained relatively well, and the quality above all maintained well for 8 d storage. Under 5 ℃, chilling injury happened at later storage (the tenth days later) and the quality indexes were significantly reduced. During the storage of ipomoea aquatica at at 10 ℃, most of the indicators (except the total number of colonies) maintained better than storage under 5 ℃.