The cleaning of the pipeline is to dredge the pipeline, clean up the sludge in the pipeline and keep it unblocked for a long time, so as to prevent waterlogging in the city. Water Treatment Pipeline cleaning has become an important work that Drainage Department should pay more attentions. In the drainage pipeline, a large number of sundries and cement sand at the infrastructure construction site will precipitate and deposit, which will cause pipeline blockage. Without the cleaning of pipelines, it will cause excessive flow of sewage, pollute the environment and bring trouble to people’s life.