目的 通过介绍褪黑素对采后果蔬生理、营养品质、能量代谢、风味变化、冷害调控和抗病性的影响，为褪黑素在果蔬采后保鲜的应用提供理论借鉴。方法 综述国内外褪黑素在不同品种果蔬采后上的保鲜效果。结果 褪黑素可以调控果蔬的成熟与衰老，提高果蔬的抗冷性和抗病性，维持果蔬较高的营养物质，保持果蔬更好的生理品质。结论 褪黑素可显著延长采后果蔬的贮藏期，在未来采后果蔬保鲜领域具有广阔的发展空间。

The work aims to introduce the effects of melatonin on physiological and nutritional quality, energy metabolism, flavor change, chilling injury regulation and disease resistance of postharvest fruits and vegetables, so as to provide theoretical reference for the application of melatonin in postharvest preservation of fruits and vegetables. The effects of melatonin on postharvest preservation of different fruits and vegetables at home and abroad were reviewed. Melatonin could regulate the ripening and senescence of fruits and vegetables, improve the cold resistance and disease resistance, and maintain higher nutrients and better physiological quality. Melatonin can significantly prolong the postharvest storage period of fruits and vegetables, and has broad development space in the field of postharvest preservation of fruits and vegetables in the future.