| Since the reform and opening and the very economic development of our country and the further globalized, our marine industry has made the big progress. The number of the vessel and our transport ability rank high globally. Because of the long coastline, the complicated and changeable channel which impacted evidently by the monsoon and the heavy traffic, collision happened frequently which also impacted by the difficulty of traffic management.Compared with the land transport accident, the jurisdiction of marine collision accident is more complicated, especially today which is highly internationalized. The collision will involve the foreign vessel often, so the jurisdiction dispute will come. How to protect our country’s vessel and the right of fortune, and how to take the evidence and investigate, the definition of the jurisdiction, the choice of the policy and so on is a very part of the nation equity which is significant to the economic development and the power of our country. The main duty of China maritime system is in accordance with the law on coastal waters and inland navigable waters of the implementation of the unified management of traffic safety. As the competent authority, the implementation of international maritime treaties, to fulfill the "flag" and "port" regulatory obligations in accordance with the law, safeguard national sovereignty.This article aims to the comparison of international maritime conventions, international law and China’s maritime management legal system, combined with judicial and arbitration part of ship collision accident case, discusses our country maritime departments efficiently perform supervisory duties, safeguard the national sovereignty, methods and ways to improve the international image of law enforcement. |