目的 将Flexsim仿真软件应用于医药物流行业， 以提高医药物流中心零货库拣货流程的运作效率。方法 以某大型医药物流中心为研究对象， 根据该零货库区的布局， 使用Flexsim仿真软件进行建模仿真， 并根据订单拣选作业流程运用Flexsim脚本语言和C语言进行了编程。分析模型运行结果，找出了瓶颈， 并对拣货流程进行了优化。结果 优化后的流程， 提高了拣货作业的效率， 缩短了拣货时间。结论 采用建模仿真的方法， 找出拣货流程的瓶颈问题， 并进行合理优化， 可以提高医药物流中心零货库的拣货效率。

The paper applied the Flexsim simulation software in pharmaceutical logistics industry in order to improve the operational efficiency of order picking process in pharmaceutical logistics center unbundled warehouse. Taking a large pharmaceutical logistics center as the research subject, according to the layout of unbundled warehouse, the simulation model was built with Flexsim simulation software, programmed with Flexsim script language and C language based on order picking process of unbundled warehouse. The simulation results were analyzed, the bottlenecks were identified, and the order picking process was optimized. The optimization results showed that the order picking time in unbundled warehouse was shorten and the efficiency of order picking operations was improved. The paper used the modeling and simulation methods to identify the bottlenecks of the order picking process, then optimized reasonably, thus improving the efficiency of order picking process in pharmaceutical logistics center unbundled warehouse.