ObjectiveTo explore medical waste management method in a large hospital and strengthen the standardized management of medical waste. MethodsBetween July 2012 and December 2014, according to the PDCA cycle working procedures, existing problems were found in medical waste management through survey, the cause of which was analyzed to formulate and implement a new system of medical waste management, to help carry out employee training and cross examination, and give feedback to clinical departments to make improvements. Then, we analyzed the awareness rate of medical waste-related knowledge among medical staff, accuracy rate of medical waste disposal, average daily medical waste amount before and after the application of PDCA cycle to evaluate the effect of the measures taken. ResultsAwareness rate of medical waste-related knowledge among medical staff (2012:55.59%, 2013:62.89%, 2014:94.43%) increased with statistical significance (χ2=410.871, P<0.001). Accuracy rate of medical waste disposal (2012:69.83%, 2013:87.29%, 2014:94.91%) increased with statistical significance (χ2=197.449, P<0.001). Rank correlation analysis showed that average daily medical waste amount declined as average daily inpatients number increased (rs=?0.590, P<0.001). ConclusionUsing PDCA cycle can improve the awareness rate of medical waste-related knowledge and accuracy among medical staff to achieve continuous quality improvement of medical waste management.