Abstract: Upon adopting such researching methods as empirical analysis, comparative analysis, logical analysis and semantic analysis, this paper makes a summary about the relevant statutory provisions and the changes in the provisions,the judicial trial practices and the main arguments of the scholars about it. On basis of those, the paper analyzes character of the confirmation on the liability of the traffic accidents and the differences between this confirmation and the act of authentication and concludes that the confirmation on the liability of the traffic accidents should be regarded as a kind of specific administrative act which is conducted by the public security organs through performing their duties and functions in administrative management and that the confirmation should be accepted into the trial scope of administrative court. This paper makes an overall research about the issue through legislation, judicial practices and theory with a purpose of deepening the theoretical research and promoting the relevant legislation on the issue.On basis of that, the administrative practices and the law provisions can link up and the administrative power of the public security organs will be restricted and the right and interest of the parties in traffic accidents will be safeguarded in full so that the rule of law in administration can virtually be achieved.