Abstract: The bipolar magnetic latching relay comprises a coil assembly, a magnetic steel assembly that contains a permanent magnet and armatures, as well as two contact devices that are mounted at both sides of a base, wherein the magnetic steel assembly is pivotally connected with the base through a revolving pair, the magnetic steel assembly swings between two positions under the driving of an electric signal of the coil assembly and is retained in one swing position due to the permanent magnetic force of the magnetic steel assembly, and the swing synchronously drives the two contact devices to deflect, such that two pairs of first movable contacts and static contacts are subjected to closing/disconnecting fit. The magnetic steel assembly is provided with two driving heads that synchronously rotate along with the magnetic steel assembly and extend to the outside from the same direction.