Currently, the installation of process equipment piping and steel structure in large-scale natural gas purification plant project are generally based on the traditional way of one-shift manual welding on site, which causes a lot of disadvantages. First of all, the welding efficiency and quality are affected by factors like weather condition. Besides, the safety risk of site construction is too high. Taking "Longwangmiao 60 × 108m³/a natural gas purification plant project"  as an example, this paper focused on "industrialized mode", specifically introduced the key points of the management and control in this project which takes "standardized design, factory prefabrication, large-scale procurement, modular assembly and digital management" as the core and its application effectiveness. Furthermore, suggestions were put forward for improvement.