For the study of comfort, there is a lack of systematic research from the perspective of architecture and building environment. Under the policy guidance of the" Bashu Beautiful Yard Demonstration Piece", based on the evaluation standard of green building and the guidelines of Green House construction, the green comfort evaluation indexes of the courtyard type farmhouse in Chongqing were constructed from three aspects of architectural design, architectural indoor environment, site ecology and outdoor physical environment. The matter-element extension model was used to evaluate the comfort degree of courtyard-style farmhouse, and then the comfort degree was determined. Finally, taking a courtyard farm house in Chongqing as an example, the environmental performance was simulated and measured on the spot, and the evaluation results were obtained by experts' scoring, the evaluation system was validated by fuzzy comprehensive evaluation method and subjective comfort questionnaire. The results show that the comfort evaluation results are consistent, which verifies the feasibility of the evaluation model, it provides the optimization direction for the design and transformation of courtyard type farmhouse in Sichuan-Chongqing area.