The utility model discloses a fog steam temperature degree adjusting device that is used for III type pre -tensioning system track boards of CRTS atomizings water charging system, including atomizing controller, heating the water tank, motor -operated switch, temperature sensor, water intaking valve, water pipe and data line. Wherein, atomizing controller's a data port is connected with temperature sensor for receive temperature sensor's measured data, motor -operated switch and water intaking valve are connected to another data port. Temperature sensor sets up the bottom at heating the water tank for measure the temperature of water tank water -logging. The motor -operated switch passes through the data line and is connected with atomizing controller for the electric current of heating the water tank internal heating resistance wire is opened or closes in the instruction of receiving atomizing controller. The water intaking valve install water supply line with between the heating the water tank for adjust heating the water tank's inflow. Through this fog steam temperature degree adjusting device, realized the automatic control of atomizing water charging system moderate fog steam temperature degree can effectively shortening the maintenance time, avoided the not enough of people's industry control temperature.