The solution factors in real-time mass data, integrates the monitored emission data from vehicles in operation, non-road mobile machinery, road test remote sensing, vehicle emission treatment information management system, etc., develops monitoring data database on regional heavy-duty diesel vehicles, establishes big data platform for vehicle emission monitoring, employs data mining, analytics and other technologies, computes and analyzes monitored emission data on diesel vehicles, presents regional overview on vehicles and emissions, and supports policy and decision making on vehicle-related environmental administration.