Temperature control valve for heat supply system

The utility model provides a temperature control valve for a heat supply system. The temperature control valve comprises a valve body, a valve cylinder and a driving device, the driving device is arranged at the upper end of the valve cylinder; a valve cavity is formed in the valve body, connectors are arranged on the left side and the right side of the valve body and communicated with the valve cavity, and the inner wall of the valve cavity is connected with a waterproof piece. The upper end of the lead screw penetrates through the limiting sleeve to be connected with the driving device, the lower end of the lead screw penetrates through the valve body to stretch into the valve cavity, and the end, located in the valve cavity, of the lead screw is connected with a water stop plug which makes contact with the water separation piece. The lead screw is driven by the driving device to rotate and is matched with the waterproof piece to automatically control fluid flowing, and the valve barrel, the limiting sleeve