The invention belongs to the technical field of fruit tree pruning, in particular to a method for pruning peach trees. Pruning in the first year: After the seedlings are planted, select full buds to fix the stem, and remove all branches on the main trunk at the same time; in summer, perform bud removal and branch thinning treatment, and remove competing branches, upright branches, over-dense branches, and flat oblique branches in winter. Keep fruiting branches for each peach tree; pruning in the second year: in summer, extend the center trunk and pinch or drop the head, keep the center trunk in winter, remove the branches at the base of the center trunk, and keep only the middle and upper fruiting branches; pruning in the third year: summer When pruning, keep the twigs, and keep the distance between each twig to bear fruit; in winter, remove the prosperous branches on the central trunk from the base, and let them bear fruit after flowering. The invention is scientific and reasonable, simple and easy to implement, and the peach trees are well ventilated and light-transmitting, easy to manage, high in yield and high in quality, high in peach quality, less damaged by wind and rain, less secondary peaches, and high in yield.