Abstract:Mechanical damage is an important cause of decay and deterioration of fruits and vegetables.Solving the problem of mechanical damage of fruits and vegetables can effectively extend the shelf life of fruits and vegetables and increase the commodity value of fruits and vegetables.This article reviews the types of mechanical damage caused by fruits and vegetables in the process of picking，transportation，storage and sales，the impact of mechanical damage on the physiological characteristics and quality of fruits and vegetables，and the molecular mechanism of mechanical damage activating signal molecules for defense response and gene expression regulation，in order to reduce Effective prevention and control measures are put forward to lay the foundation for mechanical damage of fruits and vegetables.