| Reducing energy consumption has become one of the hot topics. Building’s energy consumption as an important part of the whole energy consumption, receiving more and more attention. With the development of economy, and people’s increasing requirements for indoor comfort, the energy consumption of air conditioning in residential buildings has a substantial increase. This paper mainly focus on using reasonable insulation system to reduce air conditioning energy consumption of residential buildings, to carry out the relevant basic research,and conduct the basic research.This paper, which based on the hot summer and cold winter areas, proposes a inside and outside insulating compound system.This system take the inorganic thermal insulation as the insulation Materials, spraying a thin inorganic thermal insulation to both inside and outside of the exterior wall.At the same time, the interior walls and ceiling are also sprayed with thin inorganic thermal insulation, cooperation with the exterior wall. We get three kinds of intermittent and loculose energy using mode by the questionnaire.Using a dynamic energy simulation software to analyze the relationship between the internal and external thermal insulation composite system and other external wall insulation system with air-conditionging’s heating and cooling load.We find that inside and outside insulating compound system better than inside and outside combination insulating system, then inside insulating system, then outside insulating system.Proved that this system we proposed has a certain energy-saving effect and feasibility. And then changing the thickness ratio of the inner and outer insulation layer,use the same method to get the optimal insulation thickness ratio under this paper’s parameters.This paper’s conclution based on the hot summer and cold winter areas, and intermittent and loculose energy using mode, provides a more accurate and scientific reference for optimization of residential building’s envelope design in this areas. |