The demand for equipment has been unable to meet the current and future high performance application and development needs with the rapid development of electronic technology and upgrading of traditional industries in China. At the same time, intense market competition and technical competition require that the development cycle of the product to be as short as possible. Obviously, the software and hardware of embedded system are becoming more important foundation of technological innovation in various fields. The embedded system is a combination of advanced computer technology, semiconductor technology, electronic technology and the specific application of various industries. This determines that it must be a technology-intensive, capital-intensive, highly fragmented and innovative knowledge integration system. The embedded type is based on the application of computer technology-based hardware and software can be tailored to adapt to the application system on the function, reliability, cost, size, power and other strict requirements of the special computer system. The emergence of consumer appliances and cheap microprocessors embedded systems will form larger application areas in daily life to as the embedded system usually has low power consumption, small size and high integration. Embedded employment is widely embedded in the social needs of large talent. The content of the paper is clear in the embedded control system overview - development - application writing ideas in three chapters gradually. Chapter 1 introduces the definition, frame, characteristic, development history, current situation and prospect of the embedded control system in detail. The development of the embedded control system mainly discusses the development steps and methods. The third chapter embedded control system. This paper discusses the practical application of embedded control system in public life. As the application of these research results in the final summary of the various aspects of the system capacity and analysis of the existing problems for further research to provide a direction and valuable experience.