Bio-pump and micro-bio-carbon pump are two important ways of ocean carbon storage. They have not only important scientific significance, but also broad application prospects. It can be used to increase carbon sink, so as to achieve the purpose of emission reduction. Coastal blue carbon ecosystems, including mangroves, salt marshes and seagrass beds, can absorb large amounts of carbon from the atmosphere and oceans, and store it in ecosystems, playing an important role in mitigating climate change. Marine ecological disasters can seriously reduce the offshore marine carbon storage capacity, so the protection of marine ecosystems is essential. We should reduce land fertilization and coordinate land and sea management to solve environmental problems such as coastal eutrophication, red tide, acidification and anoxia. Reduce the destruction of seagrass beds, mangroves and salt marshes by human activities and promoting marine biodiversity. Policy frameworks, management methods and financial incentives for the protection, restoration and sustainable use of coastal blue carbon ecosystems are encouraged.