The utility model discloses an overload protection device's temperature monitoring controlling means, including device body, relay, thermosensor, display screen and motor -operated switch, its characterized in that: device body inner wall bottom is through bolt fixedly connected with relay, one side welding of device body inner wall has first fixed plate, the top welding of device body has the second fixed plate, and the welding of second fixed plate one side has an engaging plate, and this utility model passes through spare parts such as thermosensor, spur rack, gear, spur rack, flabellum, motor, rolling disc and realizes independently detecting the temperature, and can lower the temperature to the relay voluntarily, has reached the life who increases the relay, reduces the expenditure cost's of company purpose.