During the Republic of China period, "Borrowlism" was prevalent. How foreign culture and technology affected the reconstruction of the domestic design of fabric patterns system at that time is an issue that needs to be discussed. Based on the handed down cheongsam objects and the design drawings of the Republic of China fabrics in the Ethnic Costume Museum of Beijing Institute of Fashion Technology as the research basis, the relevant image data are collected, classified, and restored, and the aesthetic characteristics, cultural characteristics, and technical characteristics of the design of the fabric patterns of the Republic of China are analyzed. The design of fabric pattern design has certain references and imitations of foreign culture and technology, but there are also problems such as superficial and rough, non-systematic, and one-sided application.