With the increase of the number of nodes in the wireless sensor network,the traditional single-channel radio frequency communication will encounter problems such as co-channel interference,data loss and slow reception rate.To solve this situation,a wireless sensor network terminal equipment based on multi-radio frequency and multi-channel is designed.The device adopts the split structure of domestic microprocessor and 4-channel radio frequency connection,optimizes the fixed channel allocation algorithm,and adopts two-level star topology to prevent interference during the simultaneous operation of the radio frequency.Based on frequency division multiple access and time division multiple access combined communication protocol to solve the problem of data conflict.Through comparative experiments,the information processing rate of the terminal equipment is 2 008.5 kbps,and the packet loss rate of the system is 0.78%,which is superior to traditional single-channel equipment in terms of channel utilization,data processing rate and system stability.