Abstract: A receptacle device for holding a coffee capsule includes a holder unit and a grip unit. The holder unit includes: a housing portion of which an opened upper portion is closely attached and fixed to a jetting unit of an espresso machine such that hot water is forced to the inside from the jetting unit and that is formed in a cylindrical shape to house the coffee capsule such that an outer circumferential surface of the coffee capsule is closely attached to an inner circumferential surface thereof; and a through-hole that is formed through the bottom surface of the housing portion such that the coffee mixed through the coffee capsule from the jetting unit is discharged downward. The grip unit supports and fixes the holder unit such that the opened upper portion of the holder unit is closely attached and connected to the jetting unit of the coffee maker.