The development of sensor technology represents the development of mechatronics technology to a certain extent. Sensor technology is the key link of automatic control. Because the level of the technology directly affects the reaction speed of the system, and the speed of reaction determines the working efficiency of the mechanical equipment to a certain extent. Therefore, the higher the sensor technology level, the higher the degree of system automation. Along with the rapid development of China's economy, the demand for automation control system is more and more strong, so the modernization management in China by the sensor as the core technology of the control system become more and more attention of the industry, and has been popularized and applied widely in large area. From the current development of sensor technology, the application of sensor control system is still extending in all directions. Has been extended from the traditional mechanical manufacturing, assembly line production to aerospace, bio pharmaceutical, administrative management, security supervision and other fields. And with the rapid development of sensor management system and wireless device field, it can even predict that in the future one day, sensor applications will be spread all over the life corner. The development of sensor provides a good opportunity for the development of mechanical and electrical integration of the operating system running, especially in the testing and operation management is widely used, and with the further development of technology, the application of the sensor will be more miniaturized, intelligent and diversified, there will be more conducive to the overall development of the industry. And the national administrative management level also attaches great importance to the development of the technology of sensor, the relevant departments of research and development work for the sensor technology also provides a convenient working condition, therefore, micro mechanical processing field in China is because of the development of the technology of sensor and support in recent years has been rapid development, but also because of a the technical foundation is good, can make the field production cost lower, eventually to mass production. However, the development of new materials technology world without end, constantly available for the development of sensor technology provides a new opportunity, R & D personnel continue to new materials and new technology integration test, believe that more excellent sensor devices in the near future will come out.