Marine industries and marine management in Pacific islands are unique. As the marine fishery has saw stable growth，the seafood output has increased gradually；some Pacific islands countries are now seeking to reopen their borders and finding a balance between the public health and the resuscitating of economy that relies heavily on tourism；although the parties concerned still have obvious disputes over deep-sea mining，and the environmental impacts of the marine ecosystems remain their major concerns，such islands as Nauru and the Cook Islands support exploitation. Marine finance，as a newly emerged concept，has been supporting the sustainable marine development of the Pacific region. The Pacific islands call for investment in the marine and climate change fields by global financing institutions such as the Green Climate Fund，the Global Environment Facility，and the Adaptation Fund. In 2021，the Pacific islands actively improved marine governance through continuously increasing the investment in research of environmental issues，enhancing regional cooperation by releasing the Pacific Islands Forum Leaders Ocean Statement 2021，and strengthening marine protection in the context of climate change，etc.