The invention relates to a temperature-controlled refractory brick. The temperature-controlled refractory brick comprises a brick body, a temperature sensor arranged inside the brick body, a wireless transmitter electrically connected with the temperature sensor and a wireless receiver matched with the wireless transmitter, wherein the temperature sensor can be a resistive temperature sensor or infrared temperature sensor. According to the temperature-controlled refractory brick, the temperature sensor is additionally arranged inside the refractory brick body, so that working personnel can conveniently monitor the internal temperature of an activation furnace.