An aerosol generating system comprising: an aerosol generating device (100, 10000) having a first accommodation space into which an aerosol generating article including a susceptor can be inserted; and a cradle having a second accommodation space in which the aerosol generating device (100, 10000) can be accommodated, wherein the aerosol generating device (100, 10000) includes: a battery (110, 11000) configured to be charged by power received from the cradle while the aerosol generating device is accommodated in the second accommodation space; a first temperature sensor configured to sense a temperature of the battery; an induction coil (130, 13000) configured to receive power from the battery to form a magnetic field in the first accommodation space; a controller (120, 12000) electrically connected to the induction coil and arranged on a printed circuit board; and a second temperature sensor configured to sense a temperature of a point adjacent to the first accommodation space, wherein the controller (120, 12000) is configured to determine abnormal operation of the aerosol generating device based on a temperature sensed by at least one of the first temperature sensor and the second temperature sensor. an aerosol generating device (100, 10000) having a first accommodation space into which an aerosol generating article including a susceptor can be inserted; and a cradle having a second accommodation space in which the aerosol generating device (100, 10000) can be accommodated, wherein the aerosol generating device (100, 10000) includes: a battery (110, 11000) configured to be charged by power received from the cradle while the aerosol generating device is accommodated in the second accommodation space; a first temperature sensor configured to sense a temperature of the battery; an induction coil (130, 13000) configured to receive power from the battery to form a magnetic field in the first accommodation space; a controller (120, 12000) electrically connected to the induction coil and arranged on a printed circuit board; and a second temperature sensor configured to sense a temperature of a point adjacent to the first accommodation space, wherein the controller (120, 12000) is configured to determine abnormal operation of the aerosol generating device based on a temperature sensed by at least one of the first temperature sensor and the second temperature sensor. a battery (110, 11000) configured to be charged by power received from the cradle while the aerosol generating device is accommodated in the second accommodation space; a first temperature sensor configured to sense a temperature of the battery; an induction coil (130, 13000) configured to receive power from the battery to form a magnetic field in the first accommodation space; a controller (120, 12000) electrically connected to the induction coil and arranged on a printed circuit board; and a second temperature sensor configured to sense a temperature of a point adjacent to the first accommodation space, wherein the controller (120, 12000) is configured to determine abnormal operation of the aerosol generating device based on a temperature sensed by at least one of the first temperature sensor and the second temperature sensor.