An aerosol generating device, configured to heat a smokable material to generate an aerosol, comprising: a holder, which is made of polymer or resin and in the shape of a tube extending in a length direction, at least a portion of a tubular hollow of the holder forming a chamber to receive the smokable material; an induction coil, which is arranged on the holder and configured to generate a varying magnetic field; a susceptor, which is configured to be penetrated by the varying magnetic field to generate heat so as to heat the smokable material received within the chamber; the susceptor comprising a pin or blade shaped heating portion extending at least in part in an axial direction of the chamber and a base portion connected to the heating portion; and a ceramic fixing seat, which comprises a first side facing the chamber and a second side away from the chamber; wherein the heating portion penetrates the ceramic fixing seat from the second side towards the first side and extends at least in part to an interior of the chamber, and the base portion abuts against the second side of the ceramic fixing seat to prevent the susceptor from moving within the holder; wherein a separation portion separates the tubular hollow of the holder into a first portion and a second portion that are located at two opposite sides of the separation portion in the axial direction; wherein the first portion is configured as the chamber to receive the smokable material; and the base portion of the susceptor is accommodated within the second portion; wherein the ceramic fixing seat is arranged within the second portion and the first side of the ceramic fixing seat abuts against the separation portion. a holder, which is made of polymer or resin and in the shape of a tube extending in a length direction, at least a portion of a tubular hollow of the holder forming a chamber to receive the smokable material; an induction coil, which is arranged on the holder and configured to generate a varying magnetic field; a susceptor, which is configured to be penetrated by the varying magnetic field to generate heat so as to heat the smokable material received within the chamber; the susceptor comprising a pin or blade shaped heating portion extending at least in part in an axial direction of the chamber and a base portion connected to the heating portion; and a ceramic fixing seat, which comprises a first side facing the chamber and a second side away from the chamber; wherein the heating portion penetrates the ceramic fixing seat from the second side towards the first side and extends at least in part to an interior of the chamber, and the base portion abuts against the second side of the ceramic fixing seat to prevent the susceptor from moving within the holder; wherein a separation portion separates the tubular hollow of the holder into a first portion and a second portion that are located at two opposite sides of the separation portion in the axial direction; wherein the first portion is configured as the chamber to receive the smokable material; and the base portion of the susceptor is accommodated within the second portion; wherein the ceramic fixing seat is arranged within the second portion and the first side of the ceramic fixing seat abuts against the separation portion.