交通事故责任认定是公安机关在处理交通事故过程中,依照事实和技术划分责任或推定责任的行为.《交通事故责任认定行为的可诉性探究》以及《对交通事故责任认定的性质及其可诉性的研究》两文,针对公安机关的交通事故责任认定行为是否属于具体行政行为展开了探讨. The identification of traffic accident responsibility is the behavior of the public security organ in handling the traffic accident, in accordance with the fact and the technology division of responsibility or presumption of responsibility. “The feasibility study of liability identification act of traffic accident” and “the nature of the identification of traffic accident liability and its Litigation research ”two articles, for the public security agencies to identify whether the responsibility of the accident belongs to a specific administrative act were discussed.