Abstract: The present invention relates to a temperature control device for vehicle thermal cup, which is mainly assembled from a cup body, a heat conductor, a thermal insulated outer casing and a switching switch, wherein the heat conductor attached to the circumferential wall of the cup body enables liquid to be quickly heated. The switching switch installed on the surface of the thermal insulated outer casing forms an electrical circuit with a high temperature control device and a low temperature control device. Accordingly, the user can use the switching switch to select a heating or heat preservation mode to maintain the temperature of the liquid and quickly achieve the effectiveness to boil the liquid.