Abstract: Politics is the core of martial virtue,and therefore the top priority for the cultivation of martial virtue is a determined political belief.Determined political belief for the contemporary revolutionary army men involves the persistent adherence to "Four Beliefs",party's absolute leadership over the army,party's aim of serving the people wholeheartedly,and the strong opposition against the so-called "non-party affiliation" and "depoliticization" of the army.In the meantime,to win future's war,to create peace and to promote world harmony should be counted as political beliefs and be included in the system of content of the cultivation of martial virtue,so that the scope of the cultivation of army man could be broadened and the status of the cultivation of martial virtue could be promoted.