Against the backdrop of digital transformation in the global construction industry, BIM technology serves as the core driving force. By building a unified data standard and intelligent review system, it promotes the digital transformation of the entire process and all elements in the construction industry. This article systematically analyzes the development path of digital architecture at home and abroad, explores the key technology system of intelligent construction, summarizes the digital practices in planning, design, construction implementation, and operation and maintenance stages, and provides theoretical support and practical reference for building a modern architecture industry system.