目的 为强化疫情防控工作，针对物流冷链行业包裹消毒链工作效率缓慢的问题，对消毒设备进行改进设计，提高冷链消毒设备操作时的人机舒适性和工作效率。方法 基于人机工程学理论，对现有物流冷链消毒设备原理与组成结构进行分析，对消毒设备的功能布局和结构尺寸进行优化。利用Jack虚拟仿真软件对改进前、后的冷链消毒设备进行对比，并进行人机工程仿真验证及评价。结果 通过仿真验证得出，改进后的消毒设备方案增强了人体在不同工作流程中的舒适度，有效改善了操作人员长期工作时的身体疲劳，并提高了产品的使用效率。结论 冷链消毒设备的改进设计使消毒人员与机器之间形成和谐有效的人机关系，研究结果可为消毒设备创新设计提供参考，为疫情防控期间冷链行业的防疫工作提供有效建议。

The work aims to improve the design of logistics cold chain disinfection equipment to improve the man-machine comfort and work efficiency in operation of cold chain disinfection equipment, to solve the slow work efficiency of the parcel disinfection chain in the logistics industry, and strengthen the epidemic prevention and control. Based on the ergonomics theory, the principle and structure of the existing logistics cold chain disinfection equipment were analyzed, and the functional layout and structural dimensions of the disinfection equipment were optimized. Jack virtual simulation software was used to compare the cold chain disinfection equipment before and after improvement, and ergonomic simulation verification and evaluation were carried out. Through the simulation, it was concluded that the improved disinfection equipment scheme enhanced the comfort of human body in different work processes, effectively improved the working fatigue of operators, and effectively improved the efficiency of product use. The improved design of cold chain disinfection equipment can form a harmonious and effective human-computer relationship between disinfection personnel and machines. The research results can provide reference for innovative design of disinfection equipment and effective suggestions for epidemic prevention in the cold chain industry during epidemic prevention and control.