The utility model relates to the field of
optical fiber cutting, in particular to a staggered electric cutter device and a fusion splicer thereof, the electric cutter device comprises a
machine body, an
optical fiber clamping part, a
cutting part and a cover plate, the
machine body is used for carrying the
optical fiber clamping part, the
cutting part and the cover plate, a transmission shaft is arranged on the
machine body, one end of the transmission shaft is connected with the cutting part, and a rotating shaft is arranged on the machine body. The rotating shaft is hinged to the cover plate, the rotating shaft is perpendicular to the transmission shaft, the optical
fiber clamping part is arranged on the machine body, the optical
fiber clamping part is used for clamping an optical
fiber, the cover plate is arranged on the opposite side of the optical fiber clamping part and can rotate relative to the machine body, the movement track of the cover plate forms an arc-shaped surface, the cutting part comprises an electric cutter, and the electric cutter is arranged on the machine body. The electric cutter is configured to do
linear motion on the machine body, the motion trail of the electric cutter is a straight line, and the straight line formed by the motion trail of the electric cutter is perpendicular to the arc-shaped face formed by the motion trail of the cover plate.