Pruning is a measure to cut off or delete some organs of plants, such as stems, branches, leaves, flowers, fruits, buds and roots. Shaping is pruning trees to form a certain tree structure. Plastic surgery is done by a certain pruning method, and pruning is carried out on the basis of certain plastic surgery and according to certain purpose requirements. Therefore, the two are closely related. Pruning and shaping can adjust the tree potential, create and maintain a reasonable crown structure, form a beautiful tree posture, and even form a landscape with certain characteristics. It can also solve the contradiction between underground cables and trees in urban street greening, and maintain the high yield and high quality of ornamental trees with production functions. In areas hit by typhoons, pruning and shaping measures can also reduce wind damage, prevent lodging and improve the ornamental value of trees.