[Objective] Thespatial characteristics and influencing factors of human settlement suitability in traditional villages of Baoshan City， Yunnan Province were analyze， in order to provide decision-making references and theoretical support for the construction and improvement of human settlements， and to promote the protection， utilization， and sustainable development of mountainous traditional villages. [Methods] Taking 142 national-level traditional villages in Baoshan City as research objects， this study constructed an evaluation system covering 18 indicators across eight dimensions-including topography， climate， and economy-from the perspectives of both natural and human environments. The subjective and objective combination weighting and spatial visualization were employed to evaluate the suitability level and spatial characteristics of human settlements. Furthermore， geodetector and geographically weighted regression models were comprehensively utilized to analyze the dominant factors affecting the human settlement suitability in traditional villages. [Results] ① The comprehensive index of human settlement suitability for traditional villages in Baoshan City approximated a normal distribution and exhibited a relatively pronounced spatial clustering phenomenon. ② Significant interaction was observed among the influencing factors of human settlement suitability in traditional villages of Baoshan City. The synergy between commercial facility density and other factors was the dominant force driving the spatial differentiation characteristics. ③ The influence degree of influencing factors on the human settlement suitability of traditional villages in Baoshan City showed regional differences. [Conclusion] The spatial differentiation characteristics of human settlement suitability in traditional villages of Baoshan City are the results of the combined effects of multiple influencing factors. The influence degree of each factor exhibits regional differences. Therefore， differentiated improvement plans for human settlements should be formulated based on the specific conditions of each traditional village.