目的 对空间站卫生间的人机关系进行分析，评价其人机工效，为空间站卫生间人机工程评价、设计优化提供理论方法和技术支持。方法 以DELMIA软件为分析工具，在对空间站卫生间环境建模后，导入航天飞行乘员人体尺寸模型，构建人机仿真虚拟场景。将空间站卫生间如厕过程分解，调整人体模型的如厕姿态及舒适角度范围，对空间站卫生间可达可视域进行判别，开展空间站卫生间如厕姿态舒适性仿真分析与评价。结果 仿真结果显示虚拟航天成员如厕各阶段姿态可达性、可视性、舒适性均满足人机工程学需求。结论 该空间站卫生间能为航天乘员提供一个舒适的如厕环境，其总体结构与布局符合人机工程学设计原则。

The work aims to analyze the human-machine relationship in the space station toilet, and evaluate its ergonomics, to provide theoretical methods and technical support for the ergonomics evaluation and design optimization of space station toilet. DELMIA software was used as the analysis tool to import the human body size model of the space flight crew after the modeling of the toilet environment in the space station to construct a human-machine simulation virtual scene. The toileting process in the space station toilet was decomposed, the toileting posture and comfort angle range of the human model were adjusted and the reachable visual field in the space station toilet was determined to carry out the simulation analysis and evaluation on the comfort of toileting posture in the space station toilet. According to the simulation results, the virtual toileting posture of space flight crew met the ergonomic requirements at all stages in terms of accessibility, visibility and comfort. The space station toilet can provide a comfortable toileting environment for the space flight crew and its overall structure and layout are in line with the ergonomic design principles.