Abstract: As the core region of global energy consumption and a frontier in carbon capture and storage （CCS） technology development, East Asia Summit （EAS） participating countries hold significant strategic importance in advancing carbon neutrality. This paper systematically reviews the current status of CCS development and regional cooperation among EAS members. Through country case studies, policy framework comparisons, and cross-border project assessments, it identifies regional cooperation potential and key challenges. EAS countries exhibit a differentiated development landscape. Developed members demonstrate clear CCS strategic objectives, sustained and stable financial investment, and guide project deployment through systematic geological storage potential assessments. They emphasize the transition from basic research to commercialization, supported by increasingly refined policy and regulatory systems. The United States maintains absolute dominance in CCS R&D and commercial deployment. Australia has established a systematic R&D model, creating a complete pathway from basic research through technology transfer to commercial application. Japan has built a tripartite system integrating technology R&D, policy provision, and corporate collaboration. South Korea has legislated the development of a comprehensive CCS industry chain. Among ASEAN members, CCS development levels show significant disparity, with Indonesia and Vietnam leading collective progress. Policy and regulatory frameworks are nascent and uneven, while project stages vary considerably. Regional cooperation focuses on cross-border transport network development, joint R&D in monitoring technologies, collaborative storage potential assessments, policy framework harmonization. Exemplified by transnational models such as Singapore-Indonesia and South Korea-Malaysia partnerships. To achieve the Paris Agreement goals, EAS countries must deepen cooperation in CCS technology R&D, enhance policy coordination mechanisms, and strengthen infrastructure connectivity. By fostering greater technological synergy, policy alignment, and facility integration, EAS countries could potentially establish a globally leading CCS technology application demonstration zone, offering valuable regional implementation models for carbon neutrality.