With the development of reform and development, China's small and medium-sized enterprises are becoming more and more important in the social and economic development. They are the main body of the market economy. The quality of products determines the launching of small and medium-sized enterprises. This paper mainly uses cases to analyze the quality problems existing in the development of small and medium-sized enterprises in China, and puts forward how to improve the quality and physique of small and medium-sized enterprises in China, which can provide some reference value for enterprises.