以城市居住环境中的高空坠物现象为切入点,以坠落物痕迹为研究对象,揭示出坠物行为与住宅各空间的关联性,并对坠物高发部位做进一步研究;通过问卷调查揭示出当前国内在住宅阳台等建筑构件设计中存在的问题,最后根据行为设计理论提出建筑构件防坠设计策略,并以窗户和阳台为例,提出设计改良措施。 Taking the phenomenon of falling objects in urban living environment as the starting point, taking the traces of falling objects as the research object, this paper reveals the correlation between falling objects’ behavior and each space of residential buildings and makes further research on the high incidence parts of falling objects. Through questionnaire survey, At present, there are some problems in the design of building components such as residential balconies in China. Finally, according to the behavioral design theory, the design strategies for preventing falling of building components are put forward. Taking the windows and balconies as an example, some design improvement measures are put forward.