公民生存权及其实现方式的确认和保障,是我国宪法学研究的重要课题。我国城市地铁内的流浪乞讨人员作为社会中的一个特殊群体,其生存权的保障与公共利益的实现之间存在的矛盾是当前法制发展无法回避的问题。对地铁内乞讨行为进行的理论与现实分析表明,针对社会公共利益保护的《城市生活无着的流浪乞讨人员救助管理办法》的实施涉及公民权利与政府法治精神,政府主体必须慎重对待。 The confirmation and guarantee of citizens’ rights to subsistence and their ways of realization are important topics for the study of constitutional law in our country. As a special group in our society, the vagrants and beggars in the urban metro in our country have the contradiction between the guarantee of the subsistence right and the realization of the public interest, which is the unavoidable problem of the legal development. The theoretical and practical analysis of begging behavior in the subway shows that the implementation of the Measures for the Assistance and Management of Streetless and Beggars in Urban Areas, which is aimed at the protection of public interests, involves the civil rights and the spirit of the government by law. The government subject must be treated with caution.