Welding device capable of improving optical fiber end face processing quality

The utility model relates to the technical field of optical fiber welding, and discloses a welding device capable of improving optical fiber end face processing quality, which comprises a first transverse plate and a support plate, one side of the first transverse plate is provided with a first electric push rod, the output end of the first electric push rod is provided with a circular plate, and one side of the circular plate is fixedly connected with a welding gun; one side of the circular plate is provided with a cross rod through a telescopic part, one end of the cross rod is fixedly connected with a lantern ring, a welding gun movably penetrates through the lantern ring, one side of the cross rod is slidably connected with a supporting rod through a sliding groove, and one end of the supporting rod is connected with a clamp used for clamping an optical fiber. The utility model aims to solve the problem that when an optical fiber is manually fixed, the size of the end face of the optical fiber needing to