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In order to solve the problems of low positioning range, low precision and low bit rate in the current mineral resources distribution system, a positioning system of mineral resources distribution area based on GIS is proposed and designed. Analysis of the positioning system principle through the system, the positioning system is pre treated; the hardware system includes SJA1000 chip, CAN bus, node location and oscillator circuit; through the search model, information model, weighted positioning mathematical model composed of system software, realize the distribution of mineral resources location. Experimental results show that the system effectively expands the positioning range and improves the positioning accuracy and bit rate.