In order to meet the demands of centralized processing and evaluation of training data from multi targetscoring systems under a background of large-scale military training in digital range, a multi-grade remote target-scoring systems is proposed based on integration of McWiLL and RS485 Networks. A multithreaded remote control and data exchange are achieved by using TCP/IP and McWiLL technology. Synchronous data sharing is realized by using multi-machine control in RS-485 network. The requirements of remote monitoring and automatic evaluation as well as centralized display are met in live-ammunition training. Based on this system, to realize remote monitoring and location under the salvo bomb mode, a image processing algorithm based on time division and epipolar constraint is raised based on the characteristics of multi-explosion points and the same characteristics.