A method for manufacturing a connecting rod suitable for the aeronautics and aerospace field, said connecting rod including a connecting rod body made from a composite material and at least one end-piece, said end-piece successively including a first hollow cylindrical part, a hollow conical part and a second hollow cylindrical part, said second hollow cylindrical part ending with an end having a reduced outer diameter defined by a shoulder, said method successively including at least the following steps: a) an inner body is made using the following sub-steps: - a tube is made by winding pre-impregnated fibers on a first rotating mandrel, said tube having a wall with a thickness equal to the height of the shoulder and an outer diameter equal to the maximum outer diameter of the second hollow cylindrical part, - the tube is polymerized, - the first mandrel is removed from the tube, - the outer face of the tube is cut to length and etched, thus forming the inner body; b) one end of the inner body is attached to the end with a reduced outer diameter of each end-piece, said end of the inner body bearing on the shoulder of the end-piece; c) a first part of a second mandrel is inserted in the first hollow cylindrical part of each end-piece and a driving jaw is placed at the free end of a second part of the second mandrel; d) the preimpregnated fibers, which are identical to those of step a), i.e., they include the same resin and the same fiber, are wound on the outer surface of an assembly formed by the inner body, the end-piece(s) (1, 3, 4) and the second part(s) of the second mandrel(s) free of jaws, said fibers then forming an outer body; e) after removing the jaw(s), the inner body and the outer body are polymerized to form a polymerized single-piece body; f) the second mandrel(s) are removed and the polymerized single-piece body is cut to length. a) an inner body is made using the following sub-steps: - a tube is made by winding pre-impregnated fibers on a first rotating mandrel, said tube having a wall with a thickness equal to the height of the shoulder and an outer diameter equal to the maximum outer diameter of the second hollow cylindrical part, - the tube is polymerized, - the first mandrel is removed from the tube, - the outer face of the tube is cut to length and etched, thus forming the inner body; - a tube is made by winding pre-impregnated fibers on a first rotating mandrel, said tube having a wall with a thickness equal to the height of the shoulder and an outer diameter equal to the maximum outer diameter of the second hollow cylindrical part, - the tube is polymerized, - the first mandrel is removed from the tube, - the outer face of the tube is cut to length and etched, thus forming the inner body; b) one end of the inner body is attached to the end with a reduced outer diameter of each end-piece, said end of the inner body bearing on the shoulder of the end-piece; c) a first part of a second mandrel is inserted in the first hollow cylindrical part of each end-piece and a driving jaw is placed at the free end of a second part of the second mandrel; d) the preimpregnated fibers, which are identical to those of step a), i.e., they include the same resin and the same fiber, are wound on the outer surface of an assembly formed by the inner body, the end-piece(s) (1, 3, 4) and the second part(s) of the second mandrel(s) free of jaws, said fibers then forming an outer body; e) after removing the jaw(s), the inner body and the outer body are polymerized to form a polymerized single-piece body; f) the second mandrel(s) are removed and the polymerized single-piece body is cut to length.