The invention discloses a virtual-reality multi-participant same-scene mixed traffic flow simulation experiment platform, which comprises a scene creating module, a car simulation module, a truck simulation module, a non-motor vehicle simulation module, a pedestrian simulation module, a bus simulation module, a road environment module a meteorological environment module and a storage module. By the scene creating module, two or more of the car simulation module, the truck simulation module, the non-motor vehicle simulation module, the pedestrian simulation module and the bus simulation modulecan be selected to participate in simulation, various scenes, in accordance with China's national situation, including same-vehicle multi-participant scenes, different-vehicle multi-participant scenesand the like can be created, various testing experiments can be carried out, and traffic data in line with actual traffic conditions can be outputted to provide data support for traffic constructiondepartments and management departments in traffic management, prediction and planning.