A slip ring device for a rotating electric machine, comprising: a first ring and a second ring disposed coaxially in a mutually insulated fashion; a long lead having one end portion connected to the first ring and another end portion connected to a rotor coil; a short lead having one end portion connected to the second ring and another end portion connected to the rotor coil; and a molded body formed by insert molding, for retaining the first ring, the second ring, the long lead, and the short lead in a mutually insulated fashion, wherein the molded body includes a restricting member for restricting the long lead from being moved and deformed during the insert molding; wherein the restricting member comprises: a first-ring supporting portion to be brought into surface contact with an inner circumferential surface of the first ring so as to support the first ring; a second-ring supporting portion to be brought into surface contact with an inner circumferential surface of the second ring so as to support the second ring; an inter-shaft supporting portion provided between the first-ring supporting portion and the second-ring supporting portion, the inter-shaft supporting portion being larger than the first-ring supporting portion and the second-ring supporting portion; characterized in that the restricting member further comprises a lead restricting portion extending from the second-ring supporting portion in an axial direction, for restricting the long lead from being moved and deformed outwardly and inwardly in a radial direction. a first ring and a second ring disposed coaxially in a mutually insulated fashion; a long lead having one end portion connected to the first ring and another end portion connected to a rotor coil; a short lead having one end portion connected to the second ring and another end portion connected to the rotor coil; and a molded body formed by insert molding, for retaining the first ring, the second ring, the long lead, and the short lead in a mutually insulated fashion, wherein the molded body includes a restricting member for restricting the long lead from being moved and deformed during the insert molding; wherein the restricting member comprises: a first-ring supporting portion to be brought into surface contact with an inner circumferential surface of the first ring so as to support the first ring; a second-ring supporting portion to be brought into surface contact with an inner circumferential surface of the second ring so as to support the second ring; an inter-shaft supporting portion provided between the first-ring supporting portion and the second-ring supporting portion, the inter-shaft supporting portion being larger than the first-ring supporting portion and the second-ring supporting portion; characterized in that the restricting member further comprises a lead restricting portion extending from the second-ring supporting portion in an axial direction, for restricting the long lead from being moved and deformed outwardly and inwardly in a radial direction. a first-ring supporting portion to be brought into surface contact with an inner circumferential surface of the first ring so as to support the first ring; a second-ring supporting portion to be brought into surface contact with an inner circumferential surface of the second ring so as to support the second ring; an inter-shaft supporting portion provided between the first-ring supporting portion and the second-ring supporting portion, the inter-shaft supporting portion being larger than the first-ring supporting portion and the second-ring supporting portion; characterized in that the restricting member further comprises a lead restricting portion extending from the second-ring supporting portion in an axial direction, for restricting the long lead from being moved and deformed outwardly and inwardly in a radial direction.