The Vehicle-Integrated Real-Time 3D Reconstruction and Application Platform comprises a drone flight platform, a sub-system with sub-centimeter positioning accuracy, oblique/orthophoto cameras, LiDAR, data transmission, and an in-vehicle data processing subsystem. Its core mission is to efficiently and systematically provide maps and fundamental geographic information to relevant national authorities for responding to sudden public emergencies such as natural disasters, accidents, public health incidents, and social security incidentsData Chain Transmission, and an Onboard Data Processing Subsystem. Its core mission is to efficiently and systematically provide surveying and mapping products—including maps, fundamental geographic information data, and public geographic information service platforms—to relevant national authorities for responding to sudden public emergencies such as natural disasters, accidents, public health incidents, and social security events. It also conducts remote sensing monitoring, navigation positioning, and map production services as required.