Abstract: The scientific and reasonable application of waterproof and anti-seepage construction technology in construction can greatly improve the construction quality of construction projects and the comfort of residents' lives.Although in recent years, my country has made good achievements in waterproof and anti-seepage, and basically solved the leakage problem, there is still a local leakage problem. Based on this, this article combines theory and practice,first analyzes the main causes of leakage, then discusses the main locations and causes of leakage in construction projects, and finally discusses the specific application of waterproof and anti-seepage construction technology in construction. There are certain reference and help for the construction of similar projects.