关 键 词 ：地政学；地政学院；萧铮；万国鼎；平湖实验县学科分类：中国近代史现代史
地政学既是民国时期兴起的一门重要社会科学，也是国民党推行土地改革的重要指导。20 世纪 30 年代，以西学东渐大潮及土地问题的重要性不断提高为背景，加上两类知识分子分别对 “学术中国化”及国民党 “清党”后革命论述变化的响应，共同促成了地政学的兴起。从学科史的角度出发，当时显然形成了一个以中央政治学校附设地政学院为中心，结合中国地政学会、地政月刊社而成的学术团体，不断推动地政学学科向前发展。而平湖实验县的成败经验，则不但向我们展示地政学的实践形态，更提示出地政事业作为政治与学术共谋的本质。地政学在整个20世纪的发展，亦说明学术与政治之间，在紧张和对峙的既有认知外，更有亲近与相互依存的面向。
Land economic is not only an important social science in the republic of China，but also an important guide for the nationalist party to carry out land reform. In the 1930s，against the background of the eastward spread of western learning and the increasing importance of land issues，together with the response of the two types of intellectuals to the change of aca- demic sinicization and the revolutionary discourse of the nationalist party after the purge，they contributed to the rise of land economic. From the perspective of scientific history，at that time，it was obvious that an academic organization was formed with the graduate school of land economic as the center， combined with the land administration institute and the land administration monthly，constantly promoting the development of the subject. The success or failure experience of Pinghu experimental county not only show s us the practical form of land science，but also shows the essence of land economic as a political and academic conspiracy. Finally，the development of land economic in the whole 20th century also shows that there is not only the cognition of tension and confrontation between academics and politics，but also the face of closeness and interdependence.