Abstract： Objective:To investigate the knowledge of tactical combat casualty care（TCCC）in the nurses of the field medical team in a military hospital，so as to provid a basis for relevant training.Methods:The nurses in the field medical team of a military hospital were selected as the subjects by the random sampling method. A self-designed questionnaire，Survey on nurses’ knowledge of tactical combat casualty care（TCCC），was used for investigation，and the results were analyzed.Results:The average score of the nurses in the field medical team in mastering the relevant knowledge of TCCC was 6.02 ± 1.94，and 13 nurses passed the test，with the passing rate of 11.8%.Conclusion:The knowledge of TCCC of the nurses in the field medical team needs to be improved. The training plan of TCCC of the nurses in the field medical team should be enhanced to develop their capabilities of combat casualty care.