Abstract: With the accelerated development of urbanization process in our country,and the present situation of the high consumption of energy,and low level of energy-saving technologies in our country,as a result,the task of energy efficiency of buildings is very arduous.By analyzing the relationship between the energy efficiency of buildings and interior design,it is proposed that the main factors which have effects on the energy conservation of interior decoration,and makes a studied the method that how to save energy by combining modern technology with interior design,which can adapt to the ecological balance and harmony,and create a suitable indoor environment.It is also a new topic needing careful exploration by interior decoration and related industries.