In this paper, targetscoring system accomplishes artillery, aviation firefighting remote monitoring and explosion points location automatic assessment, and provides effective scientific basis to the army combat training effect, at the same time also is the need of construction of digital range. 3level targetscoring system based on wireless transmission terminal and RS485 network has the characteristics of distributed measurement, unmanned, remote control, friendly manmachine interface, and accomplishes automatic identification and location, information wireless transmission, digital display, and data management. The system is built based on binocular stereo vision measurement principle. 25 fps camera collects 100 consecutive frames, and implements 15 explosion points locations realtime and online. It has well solved the problem of large threedimensional space multiple targets automatic positioning calculation.