Platanus acerifolia used as street trees can adopt a natural happy shape or a cup shape. After planting, cut the trunk at 3 ~ 3.5m When pruning in winter that year, select 3 ~ 4 branches that are robust, evenly distributed and grow obliquely (at an angle of about 45 with the trunk) as the main branches, keep them short by 30 ~ 50 cm, and cut off all the other branches. After germination in the second year, sprout strips growing in one direction are left near the incision of each main branch as primary side branches, and each side branch is required to be in the same direction as the main branch; In winter, 30 ~ 50~60cm short sections are reserved for lateral branches and 50~60cm short sections are reserved for main branches. At the same time, attention should be paid to removing competitive branches and tillers in the growing season to maintain the advantage of main branches. In the third year, continue to cultivate the main branch, the other side of the first lateral branch is 40-50 cm away from the first lateral branch, and cultivate the second lateral branch, leaving 40-50 cm short Duan Dong scissors. After pruning in winter every year, we should pay attention to cultivating the advantages of main branches, cutting off pests and diseases, erect branches, competitive branches and overlapping branches, and cutting off too dense side branches. After 3 ~ 4 years of cultivation, the dental crown is basically formed. When the main branches and lateral branches are spread too long, they should be retracted and trimmed in time to stimulate the branches and leaves at the base of the main branches and lateral branches to prevent baldness and ensure a thick leaf curtain layer.