Abstract:The fresh fruit of'Ningqi 7'was used as the test material，and the effects of 90% high oxygen pretreatment，1-methylcyclopropene（1-MCP）fumigation and combined treatment on the quality of fruit stored at（0±1）℃for 30 d were studied.The experimental results showed that the high oxygen pretreatment could significantly reduce the weight loss and decay rate of Lycium barbarum fruit，maintain the fruit hardness，increase the activities of superoxide dismutase，catalase，and ascorbate peroxidase（P＜0.05），and maintain commercial value of the fruit.1-MCP fumigation could significantly reduce the fruit respiration intensity（P＜0.05），effectively maintain the fruit surface glossiness and the ascorbic acid（ASA）content，and inhibit the accumulation of malondialdehyde（MDA）content in the fruit.Although the fruit storage quality was maintained to some extent in the face of a two-way stress response to 1-MCP fumigation combined with high oxygen pretreatment，its overall performance was rather inferior to that of the single treatment.In conclusion，both 1-MCP fumigation and high oxygen pretreatment could effectively improve the storage quality of Lycium barbarum fruit，but the combined treatment was less effective than the single treatment，and the metabolic mechanism caused by the two-way stress needs to be studied in depth.