1, young tree pruning: keep the main branches of young trees, cut off messy and too thin branches, and top them for 2-3 times to promote the growth of side branches.

2. Cultivating mother branches: keep new bearing branches on the original bearing branches, cultivate strong branches, and cut off branches with few bearing.

3, spring pruning: combined with thinning flowers and fruits, pruning dense branches and transverse branches, cutting off cracked and deformed fruits. Autumn pruning: to cut off the dense parts of longan trees, cut off old branches, dead branches and insect branches.