The connecting rod cap 150 of the forging process,the process of greening of the forging process,introduced forging die(especially the pre-chamber and the final forging die forging die bore) design,effectively improved the forging process insured the connecting rod cap 150 formed and super exactitude size precision,improved the quality of forgings,forgings qualified product rate,efficiency and service life of forging die forging,reduce cast of forgings.