本文通过对 1934-1937年间北平市新生活运动中北平市警察所参与活动的整理研究，指出警察在北平市新生活运动开展的第一阶段起着宣传示范，监督检查，组织引导三个方面的作用，而在新生活运动开展的第二阶段只起到了宣传示范的作用。造成这种情况的原因是新生活运动开展得虎头蛇尾，其第一阶段清洁和规矩两项需要警察的执法力配合监督检查，而第二阶段开展“三化”过程中并不需要警察的监督检查，同时警察在推行新生活运动中的手段比较单一，缺乏灵活性和多样性。

By reviewing the Policemen’s activities in the New Life Movement during 1934-1937 in Beiping, this thesis addresses the functions of the policemen. The basic function in the first phase are publicity and demonstration, supervision and inspection as well asorganization and instruction, while in the second phase, the policemen only took the responsibilities of publicity and demonstration. This resulted from the anticlimax of the New Life Movement. In the first phase, the Cleaning and Rules program needed the cooperation between both supervision and the force of the policemen. However, in the second "sanhua"phase,there was no need of policemen’s supervision.In addition, the methods of promoting the New Life Movement were simple and lacked adaptability and diversity.