Abstract: An aerosol generating device includes a housing including an accommodation space for accommodating at least a portion of an aerosol generating article, a heater configured to heat the aerosol generating article inserted into the accommodation space, a temperature sensor configured to measure a temperature of the heater, a battery configured to supply power to the heater, and a processor electrically connected to the heater and the battery, wherein the processor is configured to obtain at least one of data associated with an initial temperature of the heater, which is measured through the temperature sensor, and data associated with a final heating profile of the heater, and control power supply from the battery to the heater, based on the obtained data. Various embodiments may be made.