For traditional dwellings,the biological relationships between buildings and environment are obvious.However,the original passive design techniques are only limited control for environment,there are some drawbacks in technology.How to analysis and evaluate the design strategies objectively is important for the development of traditional dwellings and design of modern architecture.In this paper,based on the investigation of Miao minority's traditional dwellings of Langde in the southeast of Guizhou,the biological relationships between dwellings and local environment were discussed,also the shortages were presented.Furthermore,the measurement of indoor thermal environment and quantitative analysis for a typical dwelling were carried out,and some suggestions for improving the thermal performance were proposed.