Short pruning and thinning are the main pruning methods for adult peach trees in winter. Short pruning refers to cutting the branches short, cutting off the unfinished part at the top of long fruit branches, which is about 1/3 of the whole branch, and retaining rich and moderate fruit branches (generally about 25 cm). The long fruit branches with weak growth can be cut short, and the long fruit branches with strong growth and upper part of flower buds should be cut short. Long fruit branches should generally be kept inclined or horizontal, except for upright or drooping branches. You can choose short fruit branches, keep some of them thick and full of flower buds, and it is appropriate to leave an oblique or upright short fruit branch every 10 cm. Cultivate the updated branches, leaving two similar branches on the mother branch, pruning the upper branches according to the fruiting branches to make them bear fruit, leaving only the base of the upper branches heavy and short, extracting two new branches, and forming fruiting branches in the next year. For 6-7-year-old trees with full fruits, the backbone branches will be retracted and updated in time, which can be left for 30-50 cm, or even retracted to the biennial branches to prevent the lower branches from dying. Pay attention to the cultivation and renewal of fruit branches. At the same time, some regenerative branches should be left, and the upper and outer branches of the crown should be controlled to prevent the cavity from being empty. For the lower and inner chamber branches, it is necessary to combine expansion and contraction, remove the weak and retain the strong, raise the angle, and pay attention to rejuvenation. Branches that grow too densely on sparse main branches or large branches at the base.