During the past four decades，the North Sea fisheries have maintained good and stable cooperative management，with EU countries exchanging quotas with Norway for fish stocks within their respective fisheries jurisdictions under the framework of the EU Common Fisheries Policy（EU CFP）and the Fisheries Agreement between the EC and the Kingdom of Norway. The UK will remain in the EU CFP（including the quota system）until the end of 2020 after the start of the Brexit process，and after the end of the transition period，the UK will become a completely independent coastal state outside the EU CFP framework. In this context，the long-term stable fisheries access and quota exchange system between Norway and Europe will face conflicts. The differences between the UK，EU and Norway on fisheries also involve quotas and access to the Svalbard Fisheries Reserve，and Norway even intends to extend the fisheries conflict to the Arctic Council. In order to prevent the adverse consequences of conflict spillover and to achieve sustainable development of fisheries and win-win cooperation in fisheries management，the UK，EU and Norway have launched a series of actions on fisheries issues.