Computer vision is to measure and judge by machine instead of man, and convert the captured target scene into image signal through camera device. Transmitting it to the image processing system and converting it into a digital signal through the significant mark of the image; Through the calculation of the digital signal, the characteristics of the target are obtained, so as to analyze, sort out, or obtain the judgment results. It is applied to the field of automatic target reporting, so as to improve the efficiency and quality. In view of the problems existing in manual target detection, combined with the actual needs, this paper intends to apply computer vision technology to automatic target reporting, focusing on the basic principle and system composition of automatic target reporting. Combined with the actual application, this paper studies and demonstrates the highly feasible automatic target reporting technology and forms a summary report, Lay a foundation for the subsequent research and development of automatic target reporting system.