Abstract: In order to build the Second Chengdu - Chongqing high-speed railway into an Intelligent Construction 2.0 demonstration project, this paper explored the construction technology of digital factories. The paper focused on the construction of digital factories, including Anyue East Beam Factory, Qingbaijiang Pipe Segment Factory, and Dazu Steel Component Factory, from the aspects of digital factory design, intelligent equipment, and intelligent management platform. It aims to promote the improvement of work efficiency and reduce personnel in digital factories, and provide reference for the construction of other digital factories.