Abstract:Abstract：Using water chestnut as materials，under cold temperature（7 ± 1）℃，the effect of different treatment methods on the refrigeration quality of water chestnut were evaluated，including with mud and cleaned storage，with mud+prochloraz treatment，cleaned+prochloraz treatment，and cleaned+prochloraz cover soil treatment.The results showed that with mud+prochloraz treatment was significantly better in slowing down the rot and accumulation of malondialdehyde（MDA），reduce the loss of quality，and slowing down the changes of total soluble solids（TSS）content and hardness.Moreover with mud+prochloraz treatment delay the emergency of peroxidase（POD）and phenylalanine ammonia lyase（PAL）activity maximum and maintaining the antioxidant capacity.