Abstract: According to the present status of the difficult temperature monitoring and measuring in the underground mine high voltage environment, a contact temp erature monitoring and measuring system of the high voltage flame proof switch was designed based on the wireless communication.Taking the nRF24L01 as the radio f requency transmission chip and taking the ATMEGA88 and CC2430 as the transmission nodes in and out of the flame proof switch designed for the micro-controller, the hardware design and the software process of the system was provided.The contact temperature monitoring and measuring system of the high voltage flame proof switc h was applied to the high voltage switch cabinet with a rated voltage of 10 kV and a rated current of 630 A and the actual operation obviously showed that the anti interf erence capacity of the system was high and the temperature monitoring and measuring was accurate and reliable which could meet the temperature monitoring and me asuring requirements of the high voltage switch cabinet.