This paper analyzes the characteristics of wireless sensor monitoring networks for coal mine and put forward a routing protocol for security monitoring on coal mine application—Cluster Heads Multi-hops Protocol Based on Virtual Grid. According to the characteristics of the mine roadway long banded distribution, the routing constructs virtual grid that forming cluster structure based on energy loss model. It selects cluster heads according to the average energy and transmission distance of other nodes in cluster. The protocol uses multiple hops to realize data transmission between clusters. The simulation results show that the protocol balances the network energy consumption and uses the network resources efficiently. Meanwhile, it can prolong the lifetime of network.