An axial-air-gap rotating electric machine including: a stator configured in such a manner that a plurality of stator cores each having a core having an approximately columnar shape having an end surface whose width in a rotation direction of the machine is increased toward the direction away from the rotation axis and an outer peripheral surface, a coil wound around the outer peripheral surface of the core such as to connect continuous windings of the same phase in series, and a bobbin arranged between the core and the coil, are arranged annularly about the rotation axis of the machine; and at least one rotor, a surface of which faces the end surface via a predetermined air gap on each of the rotation axis radial directions, wherein the bobbin is formed in a tubular shape having an inner peripheral shape approximately coincident with the outer peripheral shape of the core, and has flanges extended by a predetermined length from the vicinity of each of both openings of the bobbin to the outer peripheral side, one of the flanges has two first notches (10a, 10b), the other of the flanges has at least one second notch, and the axial direction position of the winding start of the coil of each stator core is equal to the axial direction position of the winding end of the coil of the adjacent stator core, the coil of each stator core is led out through only one of the respective first notches the flange having the first notch through which the coil of the stator core is led out and the flange having the first notch through which the coil of the adjacent stator core is led out are located on the same opening side, and one of the first notches and one of the second notches are arranged respectively at positions opposed to each other in the rotation axis direction, and are arranged respectively at the positions on the flange extended in the radial direction from the portion at which the width of the core in the rotation direction is largest. a stator configured in such a manner that a plurality of stator cores each having a core having an approximately columnar shape having an end surface whose width in a rotation direction of the machine is increased toward the direction away from the rotation axis and an outer peripheral surface, a coil wound around the outer peripheral surface of the core such as to connect continuous windings of the same phase in series, and a bobbin arranged between the core and the coil, are arranged annularly about the rotation axis of the machine; and at least one rotor, a surface of which faces the end surface via a predetermined air gap on each of the rotation axis radial directions, wherein the bobbin is formed in a tubular shape having an inner peripheral shape approximately coincident with the outer peripheral shape of the core, and has flanges extended by a predetermined length from the vicinity of each of both openings of the bobbin to the outer peripheral side, one of the flanges has two first notches (10a, 10b), the other of the flanges has at least one second notch, and the axial direction position of the winding start of the coil of each stator core is equal to the axial direction position of the winding end of the coil of the adjacent stator core, the coil of each stator core is led out through only one of the respective first notches the flange having the first notch through which the coil of the stator core is led out and the flange having the first notch through which the coil of the adjacent stator core is led out are located on the same opening side, and one of the first notches and one of the second notches are arranged respectively at positions opposed to each other in the rotation axis direction, and are arranged respectively at the positions on the flange extended in the radial direction from the portion at which the width of the core in the rotation direction is largest.