The invention relates to a new method for grafting mango in a high-temperature and high-humidity season. The method comprises the following steps of lopping, grafting, binding, covering leaves, preventing pests and the like. From June to October, mango trees are grafted and the survival rate of the grafting reaches over 90 percent, which is increased by over 30 percent compared with that of the conventional grafting method in the same period; the problem of low survival rate of the grafting in the high-temperature high-humidity season is solved; the growth of the mango survived after the grafting is promoted; the economic benefit of a mango planter is improved; and the mature mango leaves can be used as rain-proof and sunscreen materials to shield rain and direct sunlight.