The invention discloses a SC-type optical fiber connector comprising a packaging housing, a sleeve seat, a first inserting core, a second inserting core, a tail handle, a balance spring, a bearing seat, a clamp screw nut, and a rubber sleeve pipe. The end part of the first inserting core is provided with a small diameter connecting part in an extended manner, and the corresponding end part of the second inserting core is provided with a connecting groove. The middle part of the first inserting core is connected with an elastic support, and the outermost edge of the elastic support abuts against the inner wall of the sleeve seat. The rear end outer wall of the sleeve seat is provided with an installation groove, in which is movably disposed a steel ball. The front end outer wall of the bearing seat is provided with an annular clamping groove. The inner wall of the packaging housing is provided with an annular avoiding groove cooperated with the steel ball, and the rear end of the sleeve seat is fixedly connected with a rear seat, and a reset spring is disposed between the rear seat and the packaging housing in an abutting manner. The middle part outer wall of the sleeve seat is provided with a large diameter part, and the packaging housing is movably disposed between the large diameter part and the rear seat. The SC-type optical fiber connector has advantages of simple and reasonable structure, convenient and fast installation, high optical coupling efficiency, stable working performance, and long service lifetime.