By introducing the digital technology information system and focusing on topics such as digital content editor, data interface of various business systems of the enterprise and after-sales engineering data center, requesting and accurate delivery of digital information, multi-modal interaction, content compliance, intelligent multi-language translation solution based on big model and automated typesetting, it shows a series of mature digital solutions to help the technical documentation department and the after-sales service department from This will help the technical documentation department and after-sales service department to move from passively responding to the pressure of document development to becoming an enabler of business growth. The demonstration not only introduces the new idea of digital transformation of technical document development and after-sales service engineering, but also provides specific landing technical solutions. The business scenarios cover traditional manufacturing, high-tech equipment, Internet and communications and many other industries. The scene not only has the demonstration of mature products and the explanation of technical realization path, but also has sufficient interactive sessions to give specific ideas and practices around the construction of digital technology information system.