The construction of water supply and drainage pipelines is a very important part of municipal construction. The construction of HDPE pipe has been widely used in the construction field of water supply and drainage pipelines due to its many advantages. Therefore, the construction process of HDPE pipe has also been studied more and more in the construction of municipal water supply and drainage, which is of great significance for the application of HDPE in municipal water supply and drainage construction. This paper analyzes the HDPE pipe construction process of municipal water supply and drainage construction workers, and hopes to help the good application of HDPE pipe and the improvement of municipal water supply and drainage construction quality.