Abstract: An apparatus for external fixation of the pelvic ring, having left grip means and right grip means to be engaged in insertion/engagement holes formed respectively in the left and right iliac bone of the pelvic ring, left locking means and right locking means for mutually locking respectively the left grip means and the right grip means, left articulation means and right articulation means in order to allow to connect articulately the left and right locking means, and transabdominal means for joining the left and right articulation means. The apparatus has left and right means for guiding drilling means used by the orthopedic surgeon to provide the insertion/engagement holes so as to allow correct execution of the insertion/engagement holes.