Abstract: Objective To select key techniques for public health emergency management with technique for order preference by similarity to ideal solution(TOPSIS) method for the improvement of capability for public health emergency management.Methods The list of key techniques was established based on literature research and field investigation and Delphi expert consultation and TOPSIS method was adopted in key technique screening.Results Totally 59 key techniques of 9 categories for public health emergency were selected,with 11 techniques in field investigation of infectious disease,8 techniques in field investigation of unexplained disease,8 techniques in processing of food poisoning report,5 techniques in processing of occupational poisoning report,4 techniques in risk communication for environmental pollution event,4 techniques in risk communication for mass event,5 techniques in personal protection for nuclear and radiation emergency,6 techniques in emergency medical rescue for large-scale public activity,and 8 techniques in field emergency medical rescue.Conclusion TOPSIS method is valuable in the screening of key techniques for public health emergency management.