Abstract:Aiming at the problems of long-term low-temperature storage of table grapes，such as easy chilling damage and large residue of preservative agent，the optimum fresh-keeping mode of fresh grape by variable temperature and controlled atmosphere technology was studied.Taking the common "red globe" table grape in the market as the test material，modified atmosphere packaging（MAP）with four modes of constant temperature storage，intermittent warming，0 ℃-5 ℃ dual temperature cycle and decreasing temperature in sequence was used to study the effects of table grapes quality at low temperature storage.Results show that the intermittent heating mode of constant temperature storage at （0±0.5）℃ for 5 days，moving to 20 ℃ for 1 day，and then returning to （0±0.5）℃ was effective in maintaining table grapes cell membrane integrity，inhibition of organic acid consumption，delaying cell senescence，preservation effect is the best.The technology of variable temperature and controlled atmosphere preservation is safe and pollution-free，which ensures the better storage quality of table grapes and provides the basis for the green fresh-keeping technology of fresh fruits.