The temperature control of cabin door area for civil aircraft is investigated, and the calculation model of cabin door area is established. The method of temperature control for cabin door area is also presented. It could be laid out a heater to improve the air temperature of cabin door area inlet for the temperature control of door area, and it could be laid out the insulation between structure and liner of the cabin door or enhanced the resistance of liner for the temperature control of door area. And at the same time, the logic of automatic shutting off has to be set in order to avoid that the outlet temperature of heater is too high in some operating condition.