1-Methylcyclopropene(1-MCP) is a newly discovered ethylene receptor inhibitor that delays the senescence of fruits and vegetables. It interferes with the normal binding of ethylene to metal ions on the ethylene receptor and affects the response of fruits to ethylene by binding to the ethylene receptor protein(irreversible competition). This review summarizes the effects of 1-MCP treatment on the postharvest physiology and quality of respiratory climacteric and nonrespiratory climacteric fruits, as well as s...