A heating control circuit configured to control power of an electric heating element, comprises a temperature sensing element, having positive temperature coefficient (“PTC”) characteristics and configured to sense a temperature of the electric heating element to generate a temperature voltage, a first comparison circuit, configured to compare the temperature voltage with a reference voltage to generate a comparison signal, a controller, configured to output an on-off control signal according to the comparison signal; and a first switching element, coupled into a ground loop of the electric heating element and configured to switch on or off a power loop of the electric heating element based on the on-off control signal.