To study the effect of methyl jasmonate on the quality of pomegranate during storage and to provide basis for prolonging the shelf life of pomegranate. Lintong "Jingpitian" pomegranate was used as the experimental material. The pomegranate fruits were fumigated with different concentrations of methyl jasmonate (0.01, 0.05, 0.1 mmol/L), and then stored in cold storage at (4±0.5)℃ for 56 days. During the whole storage period, methyl jasmonate treatment could delay the decrease of pomegranate hardness, soluble solid content, total sugar content, titratable acid content and sensory quality, inhibit the increase of pomegranate peel Browning index and mass loss rate, and increase the activities of CAT, POD, PAL, Glu and other enzymes. The experiment showed that the best treatment effect was obtained when the concentration of methyl jasmonate was 0.05 mmol/L. Methyl jasmonate treatment is an effective method to maintain the storage quality and prolong the shelf life of pomegranate.