According to some embodiments, an aerosol generating device includes: a main body including an accommodation space into which a cartridge, that is detachable, is configured to be inserted; a battery provided in the main body and configured to supply power to power consumption components included in the main body; a feedback line configured to feedback electrical connection between a heater in the cartridge and the main body based on the cartridge being inserted into the accommodation space; and a controller configured to change a mode of the aerosol generating device to a use mode based on a feedback signal being received through the feedback line when the aerosol generating device is set to a shipping mode.