Abstract: No welding pipeline technology was widely used in aviation, shipbuilding and automobile industries in the 1960s. In recent years, non-welded pipeline technology has been gradually applied to hydraulic pipelines, and its application range has become wider and wider. Therefore, how to use and develop non-welded pipeline connection technology becomes more important in production and life. Based on this, this article mainly introduces the application of non-welded pipeline connection technology in the construction process of the hydraulic system of the scrap steel crusher, in order to provide a reference for similar applications.