Abstract: Huizhou ancient folk dwellings are located in hot summer and cold winter region． In summer，a more comfortable indoor physical environment can still be holden，which basically can meet the requirements of human body． Based on the investigation of Huizhou ancient folk dwellings indoor physical environment and their measured results，it was researched and analysed the energy saving technology employed in Huizhou ancient folk dwellings according to the village planning，architectural space layout and architectural construction etc．