An electromagnetic operating device for a switch including: a fixed yoke formed in such a way that E-shaped yokes formed by laminating E-shaped magnetic steel sheets (1a1) are arranged opposite each other with their projecting sections (1a2, 1a3) of the E-shape facing each other, square yokes formed by laminating magnetic steel sheets (1b1) and having a ring-shaped core section (1b2) and a projecting magnetic pole section (1b3) are disposed on both outer sides of the E-shaped yokes, and the square yokes and the E-shaped yokes are integrally laminated with the E-shaped yokes being sandwiched between the square yokes; permanent magnets; a moving member capable of linearly moving a predetermined distance inside the fixed yoke; a rod connected to the moving member and penetrating the fixed yoke to project outward from both sides thereof; and coils disposed in the fixed yoke; the moving member being moved by magnetic flux generated by supplying a current to the coils so as to abut the inner periphery of the fixed yoke, and the movement position of the moving member being held by the magnets; wherein a plurality of holes that penetrate the magnetic steel sheets (1b1, 1a1) in a laminating direction of the sheets (1b1, 1a1) is provided in the fixed yoke, characterised by further comprising: pins (6, 8) with a central unthreaded portion (6b, 8b) whose diameter is slightly smaller than that of the plurality of holes and whose end portions (6a, 8a) are threaded, are inserted into at least two of the plurality of holes to penetrate therethrough, and at least one bolt whose thread diameter is smaller than the outer diameter of the central unthreaded portion (6b, 8b) of the pins (6, 8) is provided through one of the plurality of holes, so as to fasten the laminated fixed yoke, so that the laminated steel sheets (1b1, 1a1) of the fixed yoke are fastened using the threaded portions (6a, 8a) of the pins (6, 8) and the at least one bolt, and further so that: if the fixed yoke undergoes collision force when the moving member moves, the collision force of the moving member is spread by the pins (6, 8) over each of the laminated magnetic steel sheets (1b1), and the laminated magnetic steel sheets are always held with each other by the pins (6, 8), therefore, ensuring that misalignment does not occur between the laminated magnetic steel sheets (1b1, 1a1), and the magnetic steel sheets (1b1, 1a1) are thereby stably held, and do not strike the thread on the at least one bolt. a fixed yoke formed in such a way that E-shaped yokes formed by laminating E-shaped magnetic steel sheets (1a1) are arranged opposite each other with their projecting sections (1a2, 1a3) of the E-shape facing each other, square yokes formed by laminating magnetic steel sheets (1b1) and having a ring-shaped core section (1b2) and a projecting magnetic pole section (1b3) are disposed on both outer sides of the E-shaped yokes, and the square yokes and the E-shaped yokes are integrally laminated with the E-shaped yokes being sandwiched between the square yokes; permanent magnets; a moving member capable of linearly moving a predetermined distance inside the fixed yoke; a rod connected to the moving member and penetrating the fixed yoke to project outward from both sides thereof; and coils disposed in the fixed yoke; the moving member being moved by magnetic flux generated by supplying a current to the coils so as to abut the inner periphery of the fixed yoke, and the movement position of the moving member being held by the magnets; wherein a plurality of holes that penetrate the magnetic steel sheets (1b1, 1a1) in a laminating direction of the sheets (1b1, 1a1) is provided in the fixed yoke, characterised by further comprising: pins (6, 8) with a central unthreaded portion (6b, 8b) whose diameter is slightly smaller than that of the plurality of holes and whose end portions (6a, 8a) are threaded, are inserted into at least two of the plurality of holes to penetrate therethrough, and at least one bolt whose thread diameter is smaller than the outer diameter of the central unthreaded portion (6b, 8b) of the pins (6, 8) is provided through one of the plurality of holes, so as to fasten the laminated fixed yoke, so that the laminated steel sheets (1b1, 1a1) of the fixed yoke are fastened using the threaded portions (6a, 8a) of the pins (6, 8) and the at least one bolt, and further so that: if the fixed yoke undergoes collision force when the moving member moves, the collision force of the moving member is spread by the pins (6, 8) over each of the laminated magnetic steel sheets (1b1), and the laminated magnetic steel sheets are always held with each other by the pins (6, 8), therefore, ensuring that misalignment does not occur between the laminated magnetic steel sheets (1b1, 1a1), and the magnetic steel sheets (1b1, 1a1) are thereby stably held, and do not strike the thread on the at least one bolt.