Abstract: Effects of fresh-keeping of pomegranate peel-carboxymethyl chitosan film on cucumbers were investigated.After stored at room temperature for 10d, Weight loss, MDA, total chlorophyll vitamin C and total sugar content were determined, the sensory evaluation results of the cucumbers were analyzed.By fuzzy comprehensive evaluation (FCE) and analytic hierarchy process (AHP) , comprehensive estimation for preservation effect of Cucumbers was made.Based on this, the optimal technology was investigated.Results showed that best conditions were as follows:pomegranate peel 100g and carboxymethyl chitosan 10g was in 1000mL distilled water, mixed 3h, then through a filter.Products were prepared to the preservative of extracts, with which to preserve the cucumbers, the result showed that pomegranate peel extracts presented remarkable fresh-keeping effect on cucumbers, comprehensive score on keeping fresh was 93.5, and it was very good.