An aerosol generating device provided with a rotary heater includes a casing having a hollow shape and including a path in which a cigarette is accommodated； a rotating member rotatably coupled to the casing； and a heater which has an end portion located inside the path to be inserted into the cigarette accommodated in the path, is connected to the rotating member to rotate along with the rotating member, and heats the cigarette when electricity is applied to the heater.
