"24V DC Cooling Fan" drive control method and a drive control means, in order to prevent heat damage to the machine caused by the operation, when driving the cooling fan can be taken according to a user environment best. Driven cooling fan control methods include: "24V DC Cooling Fan" perception of the machine power supply mode and temperature phase step; based on the perception of the power supply mode to determine the stage of the step change in the use of the environment; from the results of the determination of the beginning, according to the machine the power supply model, based on the above perception of temperature on the cooling fan is driven stage procedure. Or post-based AC / DC converter power supply model, based on the result of the judgment in choosing one of several cooling fan drive solutions in the ascertain "24V DC Cooling Fan" device power is based on the battery power supply mode, in accordance with the above selected cooling fan driven programs to the machine as a reference temperature controlled cooling fan drive speed.