随着我国社会经济的发展,在各方面都取得了可喜的成绩。我国是一个人口大国,也是能源消耗大国,对能源的需求量也随着经济的建设在不断的增加,同时我国在能源的使用上存在很多问题,浪费严重,我国即将面临能源危机。二次能源的电能近几年来的供需矛盾也是越来越突出,能源的缺乏已严重制约着我国经济的发展。在这样的背景下,节能减排理念出现在公众的视野里,并且越来越受到人们的关注。本文主要介绍了建筑电气节能技术的主要措施,并进一步阐述了在工程设计中的应用。 With the socio-economic development in our country, we have made gratifying achievements in all aspects. China is a populous country with large energy consumption. The demand for energy is constantly increasing along with the construction of economy. At the same time, China has many problems in the use of energy and is seriously wasting China’s energy crisis. The contradiction between supply and demand of secondary energy in recent years is also more and more prominent. The lack of energy has severely restricted the economic development in our country. In this context, energy-saving emission reduction concept appears in the public field of vision, and more and more people’s attention. This paper introduces the main measures of building electrical energy-saving technology, and further elaborates the application in engineering design.