Abstract: In view of problems of huge volume, complex wiring and small data throughput existed in battery charging and discharging monitoring system of coal mine, a wireless monitoring system of battery charging and discharging based on CC1101 wireless communication module was designed. Synchronous monitoring of multi battery sets is realized through frequency-hopping function of CC1101. Fast continuous transfer of big data packet and automatic recognition of sending end are realized through threshold characteristic of CC1101. The test result verifies validity and stability of the system.