In this study, the integrated development of rural cultural and tourism public service institutions is examined from a self-organizing process perspective. Further, an evaluation system is developed that considers internal and external driving forces. By analyzing 11 pilot villages in the Shanxi Province, we comprehensively evaluated the development level of service integration and explored its driving path through a qualitative comparative analysis. The findings of this study are as follows: (1) The weight of internal driving forces is higher than that of external driving forces. The key factors affecting the development level are resource integration, facility integration, and institutional integration. (2) The current overall development is in the local integration stage, and there are significant shortcomings in terms of integration motivation, guarantee, depth, and process. (3) Regarding internal driving forces, the cultural and tourism public service platform is regarded as the core condition, highlighting the “small and refined” characteristics of the integrated expression form. For external driving forces, the potential of the cultural and tourism consumption market is the core condition, reflecting the shortcomings in the integrated development of urban and rural social services. (4) The analysis of driving paths identified four main paths: a top-down integrated management path, functional innovation path for reforming supply models, resource sharing path for expanding integration channels, and fusion guarantee path for optimizing factor collaboration.