AR+BIM+AI Construction Management System integrates Augmented Reality (AR), Building Information Modeling (BIM) and Artificial Intelligence (AI) to create a digital twin platform for construction sites. Through mobile devices/AR glasses, BIM models are overlaid onto physical buildings at a 1:1 scale, enabling visual interaction, real-time progress monitoring and deviation early warning. AI algorithms automatically identify construction issues (such as pipeline collisions), dynamically optimize resource scheduling, and reduce the rework rate by 30%. The system covers the entire process from design to acceptance, promoting the construction process to a leap in intelligent management and control characterized by "what you see is what you get"