The purpose of the present invention is to provide an electromagnetic relay in which a movable iron piece is stabilized at an early stage and that has stable operating characteristics. Provided is an electromagnetic relay that comprises the following: a gate-shaped iron core 30; a movable iron piece 40; and a card 50, the movable iron piece 40 that pivots based on the excitation and degaussing of the electromagnet 20 presses the card 50, thereby driving a contact mechanism 60. At least one facing plane out of the facing planes of the one leg 32 of the gate-shaped iron core 30 and the pivoting shaft 43 of the movable iron piece 40 includes a shallow groove 33 for reducing magnetic flux density.
