Assembling jig for optical-fiber connector

An assembling jig for an optical-fiber connector includes two sleeve halves inter-connectible to form a sleeve body. Each of the sleeve halves includes a front half section, a rear half section extending rearwardly and longitudinally from the front half section, an abutment face extending longitudinally from the front half section to the rear half section, a strain relief sleeve holding groove opens at a front end face of the front half section and a cable passage groove opening at a rear end face of the rear half section. When the abutment faces abut with each other, the strain relief sleeve holding grooves cooperatively form a strain relief sleeve holding hole, and the cable passage grooves cooperatively form a cable passage hole.