随着我国经济的发展,人们的生活水平也越来越高,逐渐开始追求高品质的生活环境,建筑科学合理的排水设计是保证人们生活质量的重要基础,但在实际生活中很多建筑在设计排水系统时没有做到科学,存在严重的浪费现象,导致水资源的利用率比较低,因此本文就建筑排水设计的重要性,排水设计存在的问题做了认真的分析,提出了有效节能的措施,对建筑的排水节能设计有一定的借鉴意义。 With the development of our economy, people’s living standards are getting higher and higher, and gradually began to pursue high-quality living environment. Scientifically rational drainage design is an important foundation for ensuring people’s quality of life. However, in real life, many buildings are under design Drainage system did not do science, there is a serious waste phenomenon, resulting in relatively low utilization of water resources, this paper on the importance of building drainage design, drainage design problems have been carefully analyzed and put forward effective energy-saving measures , Which has certain reference meaning to the design of drainage energy saving of building.