A coil segment positioning method for positioning a plurality of distal end pairs of coil segments protruding from an end face of a core, each of the distal end pairs being constituted by a pair of distal end portions (22a, 22b) facing each other in a radial direction of the core among distal end portions of the coil segments, wherein the method comprises: preparing a first member with first insertion holes each configured to separately accept insertion of one of the distal end pairs, the first insertion holes being arranged in lines along a circumferential direction of the core to form a plurality of rows in the radial direction, and a second member with second insertion holes corresponding to the first insertion holes of the first member; inserting the respective distal end pairs with positions thereof adjusted to an extent that the distal end pairs can be inserted, into the first insertion holes of the first member and the second insertion holes of the second member, while the second member is disposed to overlap with the first member in an axial direction of the core; and aligning positions, in the circumferential direction, of the distal end portions (22a, 22b) constituting the respective distal end pairs inserted into the first insertion holes and the second insertion holes, by rotating the first member and/or the second member around an axis of the core to narrow a region in which the first insertion holes and the second insertion holes overlap with each other in the axial direction of the core, wherein one or more stand-alone distal end portions not constituting the distal end pairs are included in the distal end portions of the coil segments protruding from the end face of the core, one or more third insertion holes each configured to accept insertion of one of the stand-alone distal end portions are formed on the first member, and one or more fourth insertion holes each configured to accept insertion of one of the stand-alone distal end portions are formed on the second member, when inserting the respective distal end pairs with positions thereof adjusted, into the first insertion holes and the second insertion holes, the respective stand-alone distal end portions are inserted into the third insertion holes and the fourth insertion holes, and sizes of the third insertion holes and the fourth insertion holes are such that when the first member and/or the second member is rotated to a position at which the distal end pairs inserted in the first insertion holes and the second insertion holes are constrained by the first insertion holes and the second insertions holes, the respective stand-alone distal end portions inserted into the third insertion holes and the fourth insertion holes are not constrained by the third insertion holes and the fourth insertion holes. preparing a first member with first insertion holes each configured to separately accept insertion of one of the distal end pairs, the first insertion holes being arranged in lines along a circumferential direction of the core to form a plurality of rows in the radial direction, and a second member with second insertion holes corresponding to the first insertion holes of the first member; inserting the respective distal end pairs with positions thereof adjusted to an extent that the distal end pairs can be inserted, into the first insertion holes of the first member and the second insertion holes of the second member, while the second member is disposed to overlap with the first member in an axial direction of the core; and aligning positions, in the circumferential direction, of the distal end portions (22a, 22b) constituting the respective distal end pairs inserted into the first insertion holes and the second insertion holes, by rotating the first member and/or the second member around an axis of the core to narrow a region in which the first insertion holes and the second insertion holes overlap with each other in the axial direction of the core, wherein one or more stand-alone distal end portions not constituting the distal end pairs are included in the distal end portions of the coil segments protruding from the end face of the core, one or more third insertion holes each configured to accept insertion of one of the stand-alone distal end portions are formed on the first member, and one or more fourth insertion holes each configured to accept insertion of one of the stand-alone distal end portions are formed on the second member, when inserting the respective distal end pairs with positions thereof adjusted, into the first insertion holes and the second insertion holes, the respective stand-alone distal end portions are inserted into the third insertion holes and the fourth insertion holes, and sizes of the third insertion holes and the fourth insertion holes are such that when the first member and/or the second member is rotated to a position at which the distal end pairs inserted in the first insertion holes and the second insertion holes are constrained by the first insertion holes and the second insertions holes, the respective stand-alone distal end portions inserted into the third insertion holes and the fourth insertion holes are not constrained by the third insertion holes and the fourth insertion holes.