The GB/T 23329-2009 standard is used to determine the drape of Spinning & weaving fabrics. It specifies in detail the preparation of the sample, and sets requirements for the size, shape and quantity of the fabric to be cut. In the determination process, the equipment and operation steps used are clarified, and the conditions such as lighting and Measurement angle are standardized. With the help of this standard, the drape shape and beauty of the fabric can be accurately quantified. This is of great significance to the design and selection of Spinning & weaving products. It helps enterprises to judge the applicability of fabrics in clothing, decoration and other fields, improve the appearance effect and quality of the product, and meet the needs of consumers for the beauty and functionality of Spinning & weaving products.