Aerosol generating device and heating structure thereof

The utility model discloses an aerosol generating device and a heating structure thereof, the heating structure comprises a heating tube, and the heating tube is used for heating an aerosol generating substrate in a heating cavity; the first end of the heat conduction pipe is connected with the second end of the heating pipe, the heating cavity is communicated with the heat conduction cavity, and the heating cavity and the heat conduction cavity are used for jointly inserting an aerosol generating substrate; a heat exchange structure is arranged at the second end of the heat conduction pipe and provided with a heating hole communicating with the heat conduction cavity. The heating body is arranged in the heat exchange structure, and the heating body is used for heating air passing through the heating holes; due to the fact that the heating body is arranged in the heat exchange structure, heat energy generated by the heating body can be effectively transmitted to the heat exchange structure, the heat exchange