This paper raises that news media system is a system that, under certain contexts, combines news media organizations and their practitioners, news media management organizations and news media regulations with certain news conception. Among them, news conception, news management, news media organizations and their practitioners are the soul, guarantee and operational subject of news media system respectively. They construct a ‘concentric circles’ structure. In addition, news media system is a historical existence. Not only does it depend on the whole social system, but also it can run relatively independently and its form is diverse.