Abstract: In order to improve the productive efficiency precision management level, the modern open-pit mine has higher requirements for data communication system, so the traditional wireless communication system can not meet the needs of open-pit mine production. With the characteristics of high capability, fast data rate, wide coverage, low costs, multi function, network self-organization and so on, the communication system based on Wireless Mesh Networks has clear superiority compared to traditional wireless networks. The performance contrast analysis between Wireless Mesh Networks and Wireless Local Area Networks（WLAN） shows that the communication system based on Wireless Mesh Networks has broad applications in open-pit mine.

Key words: Open-pit mine, Wireless Mesh Networks, Communication system