Promoting the construction of national parks and the realization of the value of ecological products is an important strategic initiative to promote the construction of ecological civilization and the reform of the economic system. Using the CNKI and Web of Science as data sources, this study systematized the development and current status of ecological product research in China’s national parks. The results of the study show that: ① Domestic research started late, but has developed rapidly, showing obvious policy-driven characteristics. The research methodology system has been continuously improved, and has gradually developed from the early single qualitative analysis to a comprehensive research paradigm combining qualitative and quantitative, but there is still much room for improvement in the integration of interdisciplinary theories and the application of emerging technical methods. ② The research content mainly focuses on three dimensions: research on the value accounting of ecological products in national parks, research on the value realization of ecological products in national parks, and research on the relationship between ecological products in national parks and people’s well-being. In terms of value accounting, the value assessment method and quality assessment method are commonly used, but the accounting standards are not uniform, such as the significant difference in the accounting results of different models for the same ecological product; in terms of value realization, explore a variety of paths, modes and mechanisms centred on multiple subjects such as the government, the market and the community; and in terms of the relationship with people’s livelihoods and well-being, the relationship between national parks ecological products and well-being has been analyzed from the perspectives of local attachment, community participation and the livelihoods of the inhabitants; ③ Based on the current research status and shortcomings, future research should focus on the following aspects to deepen the research: strengthening theoretical research and improving research framework, such as integrating multiple disciplines to build a localized theoretical system; enriching research content and deepening research fields, including clarifying the conceptual classification of ecological products, perfecting the value accounting framework, innovating the value realization mechanism by combining the Two Mountains Theory, strengthening the application of digital technology, studying different types of national park ecological products and the application of green finance, etc.; improving research methods, strengthening multi-source data support, and building an intelligent technology system. This study will provide theoretical support and practical guidance for promoting the realization of ecological product value in national parks.