Nylon is the world's earliest synthetic fiber, it has excellent performance and rich raw material resources, so that it has been used until now. The purpose of this research is to investigate the acoustics of thin fabric. Acoustically, it can be seen as a thin layer composed of porous fibrous materials. Therefore, its sound absorption performance is the combination of at least two kinds of sound absorption mechanisms. The main purpose of this paper is to study the relationship between sound absorption properties and structural parameters of thin fabric by means of experiment . The study concerning the transmission and attenuation of acoustic wave in thin fabrics is helpful for the design of thin fabric, and improving its applications in the field of noise control and indoor acoustics.