A synthetic resin part integrally formed with metal members manufactured by the steps of integrally forming a plurality of metal member sets through coupling portions, each of the metal member sets comprising a plurality of kinds of metal members, inserting the metal member sets into the molding dyes of a forming machine, injecting synthetic resin for molding into the molding dye, forming a synthetic resin part integrally formed with metal members in sequence to form a synthetic resin part continuum where a plurality of synthetic resin parts are connected, and cutting off the coupling portions to complete the manufacture of the plurality of synthetic resin parts.