OBJECTIVE:To evaluate economic effectiveness of 3 kinds of antimicrobial drugs for acute lithiasic cholecystitis,and to provide reference for rational use of antimicrobial drugs in biliary disease surgery.METHODS:A multicenter prospective randomized controlled study was conducted in 493 clinical cases of acute lithiasic cholecystitis.Cost-effectiveness analysis of cefoperazone/sulbactam sodium(therapy A n=180),cefuroxime(therapy B n=148) and levofloxacin(therapy C n=165) for acute lithiasic cholecystitis were carried out.RESULTS:Effective rates of three kinds of therapeutic regimens 95.56%,73.65%,84.24%,respectively.CONCLUSION:Incremental cost-effectiveness analysis of three kinds of therapeutic regimens shows therapy A is economical and the best choice for acute lithiasic cholecystitis compared with group B and C.