The BBNJ Instrument is one of the most important international legislative processes in the fifi eld of marine biodiversity. On the relationship between the BBNJ Instrument and the existing regime of law of the sea, the international community agreed that "the process and its outcome should not prejudice the rights, jurisdiction and duties of States under the Convention or undermine existing relevant legal instruments and frameworks and relevant global, regional and sectoral bodies". According to the United Nations Convention on the Law of the Sea (UNCLOS), the overlying waters on the continental shelf beyond 200 nautical miles of a coastal state are high seas, and the overlapping of the sea space makes it necessary to clarify the relationship between sedentary species on the continental shelf and marine biodiversity beyond national jurisdiction. The BBNJ Instrument should consider the interests of coastal states with continental shelf beyond 200 nautical miles, further clarify the responsibilities of coastal States and flfl ag States of vessels operating in the overlying waters of the continental shelf on the basis of respecting the existing regimes and principles, explore inclusive and innovative regimes, and promote the link between the BBNJ Agreement and the convention's continental shelf regime in order to achieve the goal of conservation and sustainable use of Marine biodiversity.