Abstract:Objective：To analyze the changes of hospitalization costs of patients in the percutaneous coronary artery stent implantation group（DRG group FM19）in a certain hospital before and after the centralized procurement of coronary stents，and to propose the optimization of the centralized procurement process and the implementation of strategies from the perspectives of medical insurance payment，centralized procurement of consumables，suppliers and hospital consumables management. Methods：The hospitalization expense information，coronary stent use and medical insurance reimbursement of patients before and after coronary stent collection from January 2020 to December 2020 and from January 2021 to December 2021 were analyzed by statistical method in the hospital. Results：The average length of stay of patients in this group showed a downward trend，the total hospitalization cost decreased by 17.5%，and the average consumables cost decreased by 21.5%. The average cost of stents before and after centralized procurement decreased by 67.7%，and the average cost of balloon increased by 6.8%，and the composition of hospitalization expenses，consumables，surgical treatment costs，examination fees and service fees in this group was statistically significant before and after centralized procurement（P < 0.05）. Conclusion：Centralized procurement of coronary stents can effectively reduce the hospitalization cost of patients，but the proportion of hospitalization cost is still high，and the DRG payment reform should be further refined. expand the scope of centralized procurement categories and strengthen the supervision of the implementation of centralized procurement of consumables；dynamic adjustment of medical service prices；Strict qualification management of consumables suppliers；Strengthen the fine management of high-value consumables in hospitals.