The invention provides a method for improving quality of kiwi fruit and special high-quality fruit comprehensive agents. According to the method, a high-quality fruit agent No.1 capable of increasing color, sugar, hardness and yield and preventing diseases is used after fruit picking, before and after blooming an during base fertilizer application; a high-quality fruit agent No.2 capable of thickening cell walls and increasing cell density is used in a fruit swelling period, a fruit strengthening period and a fertilizer application period, wherein weight ration of the high-quality fruit agents No.1 and No.2 to water is 1:400-600, the high-quality fruit agent No.1 can be sprayed on leaves or applied to soil once after fruit picking, before and after blooming an during base fertilizer application, the high-quality fruit agent No.2 can be applied twice, once every a half month, in the fruit swelling period, the fruit strengthening period and the fertilizer application period. Through adoption of the method and the special high-quality fruit comprehensive agents, the internal quality and external fruit shape, color, storability and freeze injury resistance of kiwi fruit can be improved, the use is convenient, the cost is reduced, kiwi fruit trees become strong and can bloom and bear fruits easily, the quality of fruits is improved greatly, the disease resistance is enhanced and yellows can be prevented and controlled.