Building a functional agricultural province is a key measure for Shanxi Province to comprehensively promote high-quality agricultural development. Based on relevant theoretical foundations and research literature, identify the existing development foundations such as the whole industry chain of functional agriculture, regional brand demonstration, integration of scientific research resources, and construction of characteristic production bases, and systematically sort out financial support to help functional agriculture through financial subsidies, tax incentives, and loan support in Shanxi Province. The mechanism of agricultural development and a feasible path for the development of functional agriculture are proposed. Research results show that the development of functional agriculture in Shanxi Province faces development bottlenecks such as insufficient industrial chain coordination and value-added, heterogeneity of agricultural products and ambiguous regional brand positioning, prominent shortcomings in investment in scientific research elements, and lagging follow-up support for characteristic bases. Based on this, it innovatively proposes a package of policy support for the development of functional agriculture, build a value co-creation system between leading enterprises and the whole industry chain, use geographical indication resources to shape regionally featured brands of products, focus on deep integration and innovation of big data across the whole industry chain, and fully integrate key advantageous resources. It aims to cultivate and support the characteristics of the park to provide feasible decision-making support for the high-quality development of functional agriculture in Shanxi Province.