To provide a manufacturing method for a medical receptacle firmly and surely welding a sheet or a film primarily consisting of a thermoplastic resin which is not restricted to those containing a polar group, to a port member primarily consisting of a thermoplastic resin which is same or different from the sheet or the film and to provide the medical receptacle obtained by the manufacturing method.

This manufacturing method for the medical receptacle comprises a fist step of molding the sheet or the film into a bag shape, and temporarily fastening the port member to a prescribed position of the bag-shaped sheet or film and a second step of irradiating a laser beam 35 to the temporary fastening part 7 between the bag-shaped sheet or film 1 and the port member 5 and welding the sheet or the film with the port member.