Optical fiber connector box convenient for optical fiber fusion welding

The invention discloses an optical fiber connector box convenient for optical fiber fusion welding, wherein the optical fiber connector box comprises a first box body and a first box body cover, and the first box body is internally provided with a winding component and a wire group fixing part; an insertion hole A is formed in the side wall of the first box body; the wire group fixing component is connected with the first box body; the winding component comprises a third box body, a third box cover and a clamping component, the third box body is arranged in the first box body, an insertion hole B is formed in the side wall of the third box body, the clamping component comprises an upper pressing buckle, a lower pressing buckle and a pressing component, and the lower pressing buckle is connected with the third box body; one side of the upper pressing buckle is hinged to the lower pressing buckle, and the other side of the upper pressing buckle is connected with the pressing component; the pressing component co