A magnetic stimulation device comprising: a magnetic core including: a core body; and a pair of first and second legs (22, 26) extending from the core body; and conductors (12, 16) including: a conductor having conductive layers (12a - 12n) that are wound around the first leg and stacked in different levels; and a conductor having conductive layers (16a - 16n) that are wound around the second leg and stacked in different levels, wherein an ordinate number of the conductive layers (12a - 12n, 16a - 16n) is counted in such a manner that the layer located closest to a front end of the first or second leg (22, 26) is referred to as a first layer (12a, 16), the layer adjacent to the first layer (12a, 16a) toward the core body is referred to as a second layer (12b, 16b) and the layer closest to the core body is referred to as an nth layer (12n, 16n), the conductive layers are each formed of a wire having a rectangular cross section that is parallel to a longitudinal direction of the first and second legs, and between the pair of first and second legs, the wires of the conductive layers (12a - 12n) around the first leg are respectively connected, at each level, to the wires of the conductive layers (16a - 16n) around the second leg, the first layer wound around the first leg is connected to the nth layer wound around the second leg, the nth layer wound around the first leg is connected to the first layer wound around the second leg, second to (n-1)th layers (12b - 12(n-1)) wound around the first leg are respectively connected in reverse order to (n-1)th to second layers (16(n-1) - 16b) wound around the second leg, and remaining ends of the wires of the conductive layers (12a - 12n, 16a - 16n) wound around each of the first and second legs (22, 26) are connected in parallel for the individual first and second legs (22, 26), respectively. a magnetic core including: a core body; and a pair of first and second legs (22, 26) extending from the core body; and conductors (12, 16) including: a conductor having conductive layers (12a - 12n) that are wound around the first leg and stacked in different levels; and a conductor having conductive layers (16a - 16n) that are wound around the second leg and stacked in different levels, wherein an ordinate number of the conductive layers (12a - 12n, 16a - 16n) is counted in such a manner that the layer located closest to a front end of the first or second leg (22, 26) is referred to as a first layer (12a, 16), the layer adjacent to the first layer (12a, 16a) toward the core body is referred to as a second layer (12b, 16b) and the layer closest to the core body is referred to as an nth layer (12n, 16n), the conductive layers are each formed of a wire having a rectangular cross section that is parallel to a longitudinal direction of the first and second legs, and between the pair of first and second legs, the wires of the conductive layers (12a - 12n) around the first leg are respectively connected, at each level, to the wires of the conductive layers (16a - 16n) around the second leg, the first layer wound around the first leg is connected to the nth layer wound around the second leg, the nth layer wound around the first leg is connected to the first layer wound around the second leg, second to (n-1)th layers (12b - 12(n-1)) wound around the first leg are respectively connected in reverse order to (n-1)th to second layers (16(n-1) - 16b) wound around the second leg, and remaining ends of the wires of the conductive layers (12a - 12n, 16a - 16n) wound around each of the first and second legs (22, 26) are connected in parallel for the individual first and second legs (22, 26), respectively.