With the increasing attention to environmental issues，reducing carbon emissions has become a global consensus，and China is also actively promoting the dual carbon goals，expecting to achieve carbon peak and carbon neutrality by 2060. At present，many practical cases of the application of blockchain technology in the dual-carbon field have emerged around the world. In China，a group of enterprises represented by Zhejiang Energy Group is using blockchain technology to upgrade the process of carbon asset management. There are also many blockchain projects abroad that are accelerating the goal of carbon neutrality. In this process，blockchain technology will play its core value，realize the tracking and supervision of carbon emission data，the transparency and intelligence of carbon trading and other applications，promote the global carbon emission reduction process，and contribute to the global carbon reduction process. Base support.