As a vital ecological space in the urban fringe, country parks have faced issues such as landscape style convergence, limited functions, and insufficient potential benefits in recent years. To enhance construction efficiency, this paper examines Xi’an Fanchuan Country Park as the research subject and develops a country park efficiency evaluation system by identifying its functional attributes and considering multi-dimensional efficiency. The results indicate that the overall efficiency of Fanchuan Country Park is at a medium level (3.224), with the importance ranking of criteria being ecological efficiency > recreational efficiency > social effectiveness > cultural effectiveness. The efficiency scores reveal that recreational efficiency > ecological effectiveness > cultural effectiveness > social effectiveness. The weights and performance evaluation scores were incorporated into a quadrantal matrix for visual analysis, leading to the quadrantal positioning results of 20 index factors. Lastly, addressing the weak links in efficiency, the paper proposes optimization strategies that include enhancing spatial layout, strengthening ecological governance, promoting cultural heritage, and encouraging social communication.