Abstract: Mechanical damage is a crucial reason of kiwifruit loss in postharvest circulation. It has practical refer-ence value and significance to study the effect of 1-MCP pretreatment on the quality of kiwifruit with mechanical damage. Shaanxi ‘Xuxiang’ kiwifruits fumigated with 0.2, 0.4 and 0.8 μL/L 1-MCP, after transportation and drop damage treatment（simulated mechanical damage）, were stored at 4 ℃ and regularly measured for the changes of respiration intensity, ethylene release, hardness, mass loss rate, color value, soluble solid（TSS） content and titrat-able acid（TA） content. The results showed that 1-MCP pretreatment could effectively inhibit the occurrence of respiration peak and ethylene release of damaged kiwifruit, delay the decrease of hardness, TA, C^*value, and inhibit the increase of mass loss rate and TSS content. It was concluded that 0.4 μL/L 1-MCP treatment had the best effect on delaying the quality decline, and could significantly alleviate the mechanical damage of kiwifruit.