Abstract: In order to obtain parameters of running state of shearer accurately, a design scheme of wireless monitoring system of shearer was proposed. The wireless sensor nodes with specific-function are installed on appointed part of shearer frame,which are used to collect working signal of shearer. The signal is real-timely processed by DSP and is transmitted to wireless bridge AP by wireless MESH network, then it is transmitted to center computer by fiber. The working signal of shearer is analyzed by software of the center computer which makes alarming or other processing according to set threshold. The result of actual test showed that the system runs well and the signal intensity of wireless network can meet with requirements of wireless monitoring system of shearer.