〔Abstract〕 Objective To investigate the application effect of lean management in shortening patients' waiting time for taking medicine. Methods From December 2019 to August 2020, the average waiting time of the pharmacy of the Affiliated Shunde Hospital of Jinan University was taken as the research object, and the application effect of lean management on shortening the waiting time of patients was observed after optimizing the dispensing process of the pharmacy by applying lean management. Results The waiting time for patients to get medicine was shortened from 31 min to 10 min; The fetching time of the whole box of drugs has changed from 27 min to 7 min. The full box rate went from 19 % to 28 %. Conclusion The application of lean management can optimize the drug delivery process, shorten the waiting time for patients to take medicine, and improve the rate of the whole box.