Abstract: The extension of mine mining brings great influence to the stability of data transmission and network life cycle．From the angle of balanced energy consumption，a wireless undergruond monitoring system based on SimpliciTI network protocol was designed．First, CClll0 chip was chosen as the node core, the wireless sensor network was organized on the basis of SimpliciTI network protocol stacks, then the SimpliciTI network frequency agility mechanism was analyzed and improved according to the blindness of frequency agility, a kind of channel prediction network access mechanism was put forward．