Abstract: In this study, the changes of physiology and quality of different varieties of Chinese leeks（Changqing 2 and Taikong 9） in modified atmospheric packaging（MAP） were investigated under the storage condition of 4 ℃, so as to provide references for storage of leeks. The results showed that the respiration rates of the two varieties of leeks were inhibited during storage, and the chlorophyll contents of the two varieties of leeks were maintained at a high level（about0.50 mg/g）. Compared with the initial value, at the end of storage, the peroxidase activities of Changqing 2 and Taikong9 increased by 35.42% and 22.17%, respectively. While the VC contents decreased only by 17.27% and 17.6%, respectively. The soluble protein content of Changqing 2 decreased by 8.15%, while that of Taikong 9 increased by12.43%. Through comprehensive analysis, Changqing 2 can maintain higher nutritional quality during storage, and has better edible and economic value.