Small and medium-sized scientific and technological enterprises refer to scientific and technological personnel as the main body, led and founded by scientific and technological personnel, mainly engaged in scientific research, production, sales of high-tech products, commercialization of scientific and technological achievements and technological development, technical services, technical advice and high-tech products as the main content, market-oriented, the implementation of "self-financing, voluntary combination, independent management, self-responsibility for profits and losses, self-development," Self-restraint "knowledge-intensive economic entity." In short, small and medium-sized enterprises in science and technology are enterprises with innovation as their mission and means of survival.