The invention discloses a carburetor temperature control switch. The carburetor temperature control switch comprises a support, a rotating shaft, a rotating arm and a scroll spring. The rotating shaft is arranged on the support in a penetrating way, and the rotating shaft can rotate relative to the support. The internal end of the scroll spring and one end of the rotating shaft are fixed. The external end of the scroll spring is provided with a fixed convex part. The other end of the rotating shaft and one end of the rotating arm are fixed. The other end of the rotating arm is provided with a connecting hole which is used for fixing of a connecting rod and the connecting hole. Compared with a situation of environment temperature of 25 DEG C, the rotating angle of the rotating shaft is greater than 40 degrees when environment temperature is 65 DEG C. When environment temperature is 65 DEG C, the minimum torque output of the torque output end of the rotating arm is 0.5N.mm. According to the carburetor temperature control switch, the air door of a carburetor can be opened or closed according to temperature.