An electromagnetic connection device comprising: an armature that includes a contact surface formed at one end and is movable along an axis perpendicular to the contact surface; an attraction target member including a contact surface configured to come into contact with the contact surface of the armature when the armature moves; an electromagnetic coil that generates a magnetic flux passing through the armature and the attraction target member and causes the attraction target member to magnetically attract the armature; a spring member that biases the armature in a direction in which the armature is separated from the attraction target member along the axis; and a damping member that is mounted on a first member that is one of the armature and the attraction target member, and faces a second member that is the other, wherein the first member includes a first wall forming a contact surface to the second member, and a second wall extending along the axis from an edge portion of the first wall to an opposite side of the second member, the damping member comprises: a damper cover including an abutment portion extending along the first wall; and an elastic member fixed to the abutment portion so as to be sandwiched between the first wall and the abutment portion of the damper cover, and the first wall includes a concave portion configured to store the abutment portion of the damper cover pushed by the second member in a process of attracting the armature to the attraction target member, characterized in that the damper cover includes an engaging portion extending along the second wall, and the damper cover is put on the first member from a side of the second member, and when the engaging portion engages with the second wall, held on the second wall so as to be movable along the axis. an armature that includes a contact surface formed at one end and is movable along an axis perpendicular to the contact surface; an attraction target member including a contact surface configured to come into contact with the contact surface of the armature when the armature moves; an electromagnetic coil that generates a magnetic flux passing through the armature and the attraction target member and causes the attraction target member to magnetically attract the armature; a spring member that biases the armature in a direction in which the armature is separated from the attraction target member along the axis; and a damping member that is mounted on a first member that is one of the armature and the attraction target member, and faces a second member that is the other, wherein the first member includes a first wall forming a contact surface to the second member, and a second wall extending along the axis from an edge portion of the first wall to an opposite side of the second member, the damping member comprises: a damper cover including an abutment portion extending along the first wall; and an elastic member fixed to the abutment portion so as to be sandwiched between the first wall and the abutment portion of the damper cover, and the first wall includes a concave portion configured to store the abutment portion of the damper cover pushed by the second member in a process of attracting the armature to the attraction target member, characterized in that the damper cover includes an engaging portion extending along the second wall, and the damper cover is put on the first member from a side of the second member, and when the engaging portion engages with the second wall, held on the second wall so as to be movable along the axis. a damper cover including an abutment portion extending along the first wall; and an elastic member fixed to the abutment portion so as to be sandwiched between the first wall and the abutment portion of the damper cover, and the first wall includes a concave portion configured to store the abutment portion of the damper cover pushed by the second member in a process of attracting the armature to the attraction target member, characterized in that the damper cover includes an engaging portion extending along the second wall, and the damper cover is put on the first member from a side of the second member, and when the engaging portion engages with the second wall, held on the second wall so as to be movable along the axis.