To reduce the impact of power outage on customers for meter change, then improve the reliability of power supply and the experience of power consumption, we design a control device with wireless temperature measurement. The device is composed of a live meter changing device, an induction device and a wireless temperature measuring module. It can replace the low-voltage three-phase meter, balance the phase sequence of the three-phase circuit, and realize the corresponding wireless temperature measurement by using the temperature sensor and wireless transceiver. The experimental results show that the average detection error of current and voltage of the control device is less than 0.1%, and the designed module can meet the needs of low-power temperature measurement at low voltage, the short life of the sensor caused by the limited battery capacity is effectively solved, and the equipment has been verified to meet the national safety standards.