Abstract: At present, my country's social economy is developing rapidly, people's living standards have been greatly improved, so the demand for water continues to increase.The urban water supply network occupies an important position in the process of urban construction.The stable development of the urban economy and the improvement of the people’s quality of life are closely related to the urban water supply network.However, in recent years, leakage problems of pipeline networks in cities have frequently appeared in urban construction, which has seriously hindered the effective function of urban water supply pipeline networks.In view of this, the article discusses the causes of leakage in the urban water supply network in detail, and puts forward effective control measures, aiming to provide reference and reference for relevant industry personnel, and then contribute to the healthy and sustainable development of the industry.