This VR simulation hub for smart construction site platform directly calls the existing BIM/CIM resources, and outputs the construction process in 3D on-site with accurate combination of hybrid reality equipment supporting spatial positioning and real space, which can effectively ensure that on-site personnel have a more accurate understanding of the complex site environment and project progress, and prevent construction risks. Also enables novices to quickly understand the processes and improve the efficiency.   Through HoloLens 2 and other hybrid reality head displays, it also support real-time collaboration of various mobile devices.