Red globe grapes were used to explore the effect of SO 2 fumigation coupled with solid slow-release preservatives treatment on postharvest quality. Decay rate,bleaching rate,firmness,respiratory intensity,SO 2 residue, MDA content,total phenols content and PPO activity were measured on grape fruits. The results showed that the treatment I had more advantages to other treatments. The treatmentⅠ( SO 2 coupled with preservative paper) effectively decreased decay rate and SO 2 residue,inhibited the increase of MDA content,bleaching rate,respiratory intensity and PPO activity. In addition,treatmentⅠ could maintain significantly higher levels of firmness and total phenols content, and delay the aging process of the fruits.