Young lemon trees grow vigorously and have strong flowering ability, and it is easy to grow branches on bends and main branches, which disturbs the tree shape. Therefore, the main branch should be hung with a rope to prevent the auxiliary main branch from bending. Often wipe off the buds on the main branches. Lemons grow vigorously, pruning should be light but not heavy, and more branches and leaves should be left, based on the principle that a small amount of sunlight can penetrate into the crown. Spring, summer and autumn are mainly about picking or cutting off long branches in time. In winter, pests and diseases, dead branches and fruiting branches are mainly cut off.