JWAJournal of World Architecture2208-34802208-3499Bio-Byword Scientific Publishing Pty. Ltd.10.26689/jwa.v3i6.938Articlehttps://artdesignp.com/journal/JWA/3/6/10.26689/jwa.v3i6.938GuoXuemei2019362019-11-25Under the increasing demands as well as resource shortages in today’s society, energy-saving technologies in building water supply and drainage construction plays a vital role. Through the rational application of energy-saving technologies, energy consumption in water supply and drainage projects can be significantly minimized and wastage of water resources can be reduced. This will play a very promising role in promoting sustainable development of resources and environmental conservation in the modern era. This paper analyzes the application of energy-saving technology in building water supply and drainage construction, with an aspiration to make energy-saving technology more reasonable in today’s building water supply and drainage projects and to improve the quality of water supply and drainage construction projects, while achieving effective environmental protection.