CCD image sensor and its application researchAbstract: with semiconductor and rapid development of photoelectric technology, solid image sensor also arises at the historic moment, the production technology is developing rapidly. Solid image sensor, compared with common image sensor has the advantages of small size, high sensitivity, distortion, resistant to moisture resistance vibration and low cost, so many advantages can be widely applied in industry measurement and control, particularly in areas such as image recognition, and will be widely permeates our industrial and agricultural production departments, for our fine processing, robot technology and the development of industrial automation field play a major role. At the same time, the rapid development of computer software and hardware technology, also can give a solid image sensor applications with broad prospects. Based on the analysis of the principle of solid image sensor, focuses on it in the measurement and image recognition domain analysis and discussion.Keywords: CCD sensor, solid image sensor, engineering measurement, control, image recognition.