本文总结了氡析出率的测量原理，分析了影响不同射气介质（建筑材料、土壤、铀矿山尾矿坝等）氡面析出率的因素。文中提出测量氡面析出率时应注意的问题及相应的解决方法，并推荐了氡面析出率测量装置的设计方案。 This paper summarizes the measurement principle of radon exhalation rate and analyzes the factors that affect the radon surface precipitation rate of different radiating media (such as building materials, soil, tailing dam of uranium mine, etc.). In this paper, the problems that should be paid attention to when measuring radon surface precipitation rate and the corresponding solutions are proposed, and the design scheme of radon surface precipitation rate measuring device is recommended.