This study mainly examines the factors influencing mountain outdoor tourism development in light of the regional economy, human environment, infrastructure, talent services, and other aspects. It analyzes the advantages and disadvantages of mountain outdoor tourism development in the process of regional development by combining qualitative research with quantitative research, and puts forward corresponding sustainable development measures in combination with an actual investigation. These measures can provide certain guidance and practical information for the ultimate realization of mountain outdoor tourism in harmony with the residents, which is a win-win situation. Taking Siguniang Mountain as the research area, we adopted the methods of literature review, questionnaire survey and field interview, and used SPSS26 and Smartpls to construct a structural variance model for the related dimensional impact analysis. The results show that the attractants of a mountain outdoor tourism destination and the humanistic environment of the destination have a highly significant relationship with tourist satisfaction. Mountain outdoor tourism destination services and facilities have a low degree of significant relationships with tourist satisfaction. Among them, the path coefficient of outdoor tourism destination consumption in mountainous areas is close to 0, and the significance level is greater than 0.05, so the relationship between destination consumption and tourist satisfaction has not been affected. The correlation analysis of Smartpls showed that the tourist satisfaction of mountain outdoor tourism destinations in Siguniang Mountain is mainly affected by the cultural environment, tourism attractions and tourism facilities of the mountain outdoor tourism destinations. The analysis of the final results of the structural equation model indicated that the cultural environment and tourist attractions of the tourist destination have high positive significant relationships with the satisfaction of tourists, while the significance of the relationship between the facilities of the tourist destination and the satisfaction of tourists is weak, and the positive relationship between the service factors of the tourist destination and the satisfaction of tourists is also weak. Therefore, the functional relationship is “two strong, one weak and one weak”. Finally, suggestions are put forward for optimizing and improving tourist satisfaction from the aspects of human environment, infrastructure, talent services, and the comprehensive development of tourist destinations, which have a certain reference value for improving tourist satisfaction and the sustainable development of tourist destinations.