Shaping is to trim the overall appearance of ornamental trees, while pruning is a process of cutting unnecessary branches or sprouting new buds. Appropriate pruning must be carried out according to the different growth and development characteristics, growth environment and cultivation purposes of ornamental trees, so as to adjust the overall growth of ornamental trees, prevent their white growth and promote the centralized supply of nutrients needed to affect their overall flowering and fruiting. Pruning should also pay attention to the shape of the tree, so that the crown composed of branches, leaves, flowers and fruits can reflect each other and complement each other with the surrounding environment, creating a harmonious and beautiful scenery to meet people's ornamental requirements.