The invention discloses a screw rod type carburetor temperature control switch. The screw rod type carburetor temperature control switch comprises a shell, a rotating shaft, a rotating arm, a screw rod and a heat conducting pipe. The heat conducting pipe is arranged at one end of the shell in a penetrating way. One end of the screw rod is arranged in the heat conducting pipe, and the screw rod and the heat conducting pipe are matched in an airtight sealing way. The rotating shaft is arranged at the other end of the shell in the penetrating way, and the rotating shaft can rotate relative to the shell. One end of the rotating shaft is arranged on the screw rod in a screwing way, and 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 screw rod type carburetor temperature control switch, the air door of a carburetor can be opened or closed according to temperature.