On January 17, 2022, the Russia-Ukraine war broke out, and on October 11, 2023, a new round of Israeli-Palestinian conflict broke out. In the context of the continued escalation of the Russia-Ukraine conflict and the renewed Israeli-Palestinian conflict, the international community is facing an increasingly severe problem of illegal immigration and refugees. At present, scholars at home and abroad have made a lot of achievements in the research of the world refugee problem in the areas of the concept of refugees, causes, responses to refugee problems, and solutions. However, domestic academic circles have done more research on regional or national refugee issues, such as European refugees, North African refugees, Syrian refugees, etc., and the research on the world refugee issue from a global perspective is relatively weak. This article is to study the refugee protection issue from the international legal level it is to discuss refugee protection from the global perspective.