Proportional method is a direct drawing method. Firstly, the size of each control part of the garment is designed by measuring and according to the style, and then the specification data of each detail is calculated according to the size of the control part, and then the garment structure diagram is drawn directly on the plane. Prototype drawing method: Prototype method is to make a basic prototype of garment structure with moderate looseness in advance according to the reference dimensions of several main parts of human body, and then use this basic prototype to make plane structure drawings and paper samples of various garments according to the requirements of different styles.