The invention relates to a supervisory system for an on-site explosive mixing and charging truck, which comprises a plurality of vehicle-mounted terminals, a plurality of ground station control centers and a supervision department control center, wherein the supervision department control center is connected to the ground station control centers through a network; the ground station control centers are connected to the vehicle-mounted terminals through the network; a C/S (client/server) mode frame is adopted; the supervision department control center or each of the ground station control centers comprises a network switch, a server, a television wall and a monitoring console; each network switch is connected to the network of a telecommunication service provider through an Ethernet line, and is simultaneously connected to the server through the Ethernet line; each television wall is connected to the server through a data line; each monitoring console is connected to the server through the data line; and the monitoring console is provided with a microphone, an alarm button and a loudspeaker box. By using the system, the supervision functions, such as monitoring of technological parameters, controlling of manufacturing process, video monitoring of working conditions of the on-site explosive mixing and charging truck, GPS (global position system) positioning, fault diagnosis, wireless network communication and the like, are realized.