An aerosol-generating article and a method of manufacturing the same capable of simultaneously improving satisfaction with a tobacco smoke taste and allowing the aerosol-generating article to be manufactured at low cost are provided. The aerosol-generating article according to some embodiments of the present disclosure may include an aerosol-forming substrate portion which includes shredded tobacco leaves and is configured to form an aerosol when electrically heated by an aerosol generation device and a mouthpiece portion which is disposed downstream of the aerosol-forming substrate portion to form a downstream end of the aerosol-generating article. Since the shredded tobacco leaves are cheaper than a reconstituted tobacco sheet, manufacturing costs of the aerosol-generating article may be reduced. Also, unlike the reconstituted tobacco sheet, since the amount of supplementary materials added to the shredded tobacco leaves is small, an off-taste may be reduced, and thus user satisfaction with a tobacco smoke taste may be improved.