In a solenoid apparatus, first and second cylindrical holding parts respectively have first and second opening parts. One flange part is provided with first and second notch portions. In an exciting coil, one line end portion is held by the first cylindrical holding part, and is bent immediately after the one line end portion is pulled from the first notch portion to the inside of the flange part. A line member is wound around a winding drum part toward the other side in the circumferential direction opposed to the opening direction of the first opening part and is wound a predetermined number of turns. Thereafter, the other line end portion is bent in the axial direction immediately in front of the second notch portion and is pulled out from the second notch portion to the outside of the flange part, and is then held by the second cylindrical holding part.