Abstract: In order to solve problems of high cost, complex installation and limitation of zone location of current mine personnel positioning system, the paper put forward a design scheme of wireless tracking and positioning system of underground personnel based on WiFi and ZigBee and a real-time positioning method based on one-dimensional linear space which is perfectly fit for realistic requirement of mine underground, and introduced designs of hardware and software of the system in details. The system uses WiFi technology to construct wireless voice local network, uses ZigBee technology to construct wireless sensor monitoring network, and achieves coverage of real-time communication signals and positioning signals through integrated substations which can transmit WiFi and ZigBee signals simultaneously. The system has been applied with a good effect.