Objective:To evaluate medical service performance of the DRG pilot public hospitals in a city was carried out by using the entropy weight TOPSIS and the rank sum ratio method, so as to provid the decision-making basis for the DRG pilot reform and the high-quality development of public hospitals.Methods:The case-mix index(CMI) value, the number of DRG groups, the time consumption index, the cost consumption index, and the low-risk mortality rate were obtained from the first page of medical records of 21 DRG pilot hospitals in a city from January 2019 to December 2020.The entropy weight TOPSIS method and the rank sum ratio method were used to evaluate the medical services performance of 21 DRG pilot hospitals.Results:The CMI value and the number of DRG groups in 21 DRG pilot hospitals increased from 0.81 and 353 in 2019 to 0.86 and 369 in 2020 respectively, and the time consumption index decreased from 0.98 to 0.92. The entropy weight TOPSIS method and the rank sum ratio method had good consistency and correlation with the hospital performance evaluation results from 2019 to 2020 ( P<0.05). The overall ranking of the performance evaluation of pilot hospitals in 2020 was higher than that in 2019, the tertiary hospitals were higher than secondary hospitals, and hospitals were higher than maternal and child health care hospitals. Conclusions:The DRG payment reform had promoted the quality and efficiency of medical services in the city.