A rotary electric machine stator comprising: a stator core including an annular yoke; and teeth that protrude radially inward from the annular yoke; a coil that is wound around the teeth, the coil including a coil end that protrudes toward an axially outer side from an axially end surface of the stator core; a molded portion that is a resin member that covers the coil end, the molded portion including a first member manufactured separately therefrom and arranged on the stator before molding the molded portion, and the first member including a communication portion (40, 42) that communicates inside of the molded portion with outside of the molded portion; and a plurality of power cables that are connected to the coil and supply power to the coil from an external power supply, wherein the first member also includes a retaining portion, the retaining portion holds the plurality of power cables together and fixes the plurality of power cables to the stator core, the rotary electric machine stator being characterized in that, the first member is arranged contacting an outer peripheral side surface of the molded portion and has a curved surface that corresponds to an outer peripheral side surface of the molded portion, a bottom surface of the first member abuts against an outer peripheral side of the axially end surface of the stator core, the communication portion (40, 42) is defined by a groove and the axially end surface of the stator core, and the groove is provided in the bottom surface of the first member and extends in a radial direction of the rotary electric machine stator. a stator core including an annular yoke; and teeth that protrude radially inward from the annular yoke; an annular yoke; and teeth that protrude radially inward from the annular yoke; a coil that is wound around the teeth, the coil including a coil end that protrudes toward an axially outer side from an axially end surface of the stator core; a molded portion that is a resin member that covers the coil end, the molded portion including a first member manufactured separately therefrom and arranged on the stator before molding the molded portion, and the first member including a communication portion (40, 42) that communicates inside of the molded portion with outside of the molded portion; and a plurality of power cables that are connected to the coil and supply power to the coil from an external power supply, wherein the first member also includes a retaining portion, the retaining portion holds the plurality of power cables together and fixes the plurality of power cables to the stator core, the rotary electric machine stator being characterized in that, the first member is arranged contacting an outer peripheral side surface of the molded portion and has a curved surface that corresponds to an outer peripheral side surface of the molded portion, a bottom surface of the first member abuts against an outer peripheral side of the axially end surface of the stator core, the communication portion (40, 42) is defined by a groove and the axially end surface of the stator core, and the groove is provided in the bottom surface of the first member and extends in a radial direction of the rotary electric machine stator.