如今我国城市建筑业得到蓬勃发展,从而也导致了建筑用水量占城市总用水量的比例逐渐增加,因此建筑工程中的节水问题也越来越重要。本来我国水资源就不是很丰富,再加上现在工厂越来越多,水污染也很严重。因此,水资源成为了制约我国经济发展重要因素之一,所以,节约水资源在生活中十分重要。文章分析了在建筑中设计给排水系统的几种节水技术措施,并且指出了在实际的建筑给排水设计中需要多因素考虑,在以经济性为前提时,满足用水安全稳定性,重视设计节水系统的问题。 Nowadays, the booming urban construction industry in our country leads to the gradual increase of the proportion of construction water in the total urban water consumption. Therefore, the water saving problem in the construction project is also more and more important. Originally, China’s water resources were not very rich, coupled with more factories now, water pollution is also very serious. Therefore, water resources have become one of the most important factors restricting China’s economic development. Therefore, saving water resources is very important in our daily life. This paper analyzes several water saving technologies and measures for the design of water supply and drainage systems in buildings and points out that in the actual design of water supply and drainage in buildings, multiple factors need to be considered. When economy is the premise, the water security and stability is met and the importance of design Water-saving system problems.