The invention discloses a method for manufacturing a hammer lever of an electrohydraulic hammer, which is characterized by comprising the following steps of material section, heating, forging, normalizing treatment after forging, rough machining, flaw detection, corresponding tempering treatment, semifinishing, fine grinding, nitridation treatment, polishing, and the like, especially adopting a two-stage gas nitriding process which plays a key role in the prolongation of the service life of the hammer rod. The invention can greatly prolong the service life of the hammer level of the electrohydraulic hammer, and average hammering frequency is improved by 18 times or so from original 65,000 to 1,200,000 under the situation that other conditions are not changed.