Self-holding relay

The invention provides a latching relay, and relates to the technical field of relays. The self-holding relay comprises a support which is provided with a circuit board; the electromagnetic coil comprises a reset coil and a setting coil, the reset coil and the setting coil are respectively connected with the support, and the reset coil and the setting coil are respectively and electrically connected with the circuit board; the armature is movably connected with the support, and at least part of the armature is located between the reset coil and the setting coil; the switch assembly comprises a first static contact piece, a second static contact piece, a movable contact piece, an elastic piece and a switch wrench, the first end of the switch wrench is connected with the armature, the second end of the switch wrench is connected with the movable contact piece, and the elastic piece is connected between the switch wrench and the movable contact piece. According to the technical scheme, after the electromagnetic