An exemplary embodiment of the present disclosure provides a system for charging an aerosol generation device, the system including: an aerosol generation device including a heater for generating heat by resistance when a current is applied to the heater, a power storage unit for supplying electric power to the heater, and a controller for controlling the heater； and an external power supply device including a case, a charger receiving unit mounted rotatably on the case and configured to receive the aerosol generation device in a detachable and attachable manner, an auxiliary power storage device for storing electric power to be delivered to the aerosol generation device, and an auxiliary power supplying device for controlling the auxiliary power storage device to supply the electric power to the aerosol generation device, wherein the aerosol generation device is driven in one mode from among a charging mode, a cleaning mode, a preheating mode, and a smoking mode, according to where the aerosol generation device is received in the charger receiving unit.
