This project is the digital factory construction project of Clean Energy Branch. Through the construction of the overall production management system platform of the enterprise and the production line automation and digital upgrading demonstration of the balance weight coating workshop, the whole production process is automated, the data interconnection of each workshop, the production and operation standard process of the whole plant is realized and unified management is achieved. The completion of construction at all levels of the project, the realization of overall demonstration, overall standardization and local individuation, is a typical and successful case of digital upgrading of traditional factories with exemplary significance.