The value realization of carbon sink ecological products is a vital component of the broader ecological product value realization system. Its theoretical elaboration and practical exploration are of great significance to synergistically advance ecological civilization construction and the achievement of carbon peaking and carbon neutrality goals. Based on the theoretical foundations of ecological product value realization, this study constructs an analytical framework for the value realization of carbon sink ecological products, clarifying their conceptual connotations and the logical chain of value realization. On this basis, and drawing on representative practical cases, it compares four major value realization pathways currently applied in China in terms of their mechanisms, participating stakeholders, strengths and limitations, and applicable scenarios. The analysis further identifies five critical constraints: fragmented institutional systems, underdeveloped market mechanisms, unreasonable benefit-sharing arrangements, weak grassroots participation and incentive mechanisms, and insufficient measurement and accounting standards. In response to these challenges, the study proposes targeted policy implications, including strengthening national-local collaborative governance, improving the construction of carbon sink market systems, optimizing ecological value realization mechanisms, enhancing the participation capacity of grassroots and diverse stakeholders, and improving quantification and rights confirmation systems. This study not only enriches the theoretical perspective on carbon sink ecological product value realization but also provides empirical evidence and policy references to support institutional innovation in ecological products under the framework of China's carbon neutrality strategy.