The concept of linear cultural heritage is gaining prominence as a novel form of heritage. The intertwining of culture and tourism is placing greater emphasis on heritage tourism. An assessment system, utilizing the analytic hierarchy process and Delphi method, was developed based on resource background (R), environmental conditions (E), and social economy (S). This study delves into the tourism value by scrutinizing resources about the surrounding region across five districts and counties along the ancient Shu Road in Cuiyunlang. Standard values for each evaluation variable were established. The findings suggest that resources are the most pivotal factors, while environmental conditions and social economy are supplementary components. A three-dimensional spatial model was employed to appraise R–E–S coordination, classifying cities into three types: high-value imbalance, comprehensive breakthrough, and low-value limited. The study presents theoretical recommendations for tourism and sustainable development along the Cuiyunlang Ancient Shu Road.