Mountainous tourism area plays a crucial role in providing cultural ecosystem services (CES) for human being. Therefore, it is extremely crucial to evaluate the matching relationship between supply and demand of CES in mountainous tourism area for the planning and management of regional eco-landscape and recreation space and the improvement of human well-being. Taking Guizhou province, a typical mountain tourist destination, as the research area, this study intends to quantize the realized demand and potential supply of CES by combining the integrated assessment method of social media texts and MaxEnt model, maps and evaluates the spatial pattern of CES supply-demand and its matching relationship by using ArcGIS, and explores the influencing factors of the matching of CES supply-demand based on the Geodetector. The results suggest that: (1) Aesthetics, Recreation, Cultural diversity, Therapeutic, Biodiversity, Learning, Heritage and Spiritual are the main types of CES in Guizhou province. (2) The demand of CES is concentrated in the prominent tourist attractions and the central cities of the Guizhou province, and decreases gradually in all directions, with high and medium demand showing a spatial pattern of "decentralized and multi-core" distribution. Additionally, the high and medium supply of CES is concentrated in the vicinity of various urban areas, tourism areas and the transport networks, showing a "multi-core and multi-strip" distribution pattern with multi-core cluster distribution and banded distribution along the transportation networks. (3) According to the matching relationship between supply and demand of CES, Guizhou province can be divided into three categories: cultural service demand area, cultural service balance area and cultural service potential area. The spatial distribution of the three types of zones has strong heterogeneity, and the area of cultural service potential area is much larger than that of other regions. (4) Compared with the spatial explanatory power of a single factor on matching relationship between supply and demand of CES, the interaction between factors has a stronger spatial explanatory power, among which elevation and land use have the most significant effects. In addition, the overall explanatory power of natural factors affecting supply and demand matching of CES are stronger than that of social factors. In order to clarify the spatial distribution pattern and influencing factors of CES supply-demand and its matching relationship in Guizhou province, this study aims to clarify the potential points and transform the value of the hot spots of CES supply and demand, so as to provide theoretical reference and practical reference for realizing the rational allocation of natural resources and the conservation, development and structural optimization of ecological recreation space in mountainous tourism area.