The Big Data 3D Visualization System is an operational platform actively bridging the physical and digital worlds, using digital means to simulate and reconstruct the human, objects, and spaces in the physical world in a 3D format. It encompasses six major sections: Smart Traffic, Public Safety, Smart Business, Smart Office, Smart Education, and Smart Agricultural Machinery, forming the Big Data 3D Visualization System. The system is constructed on four fundamental functional areas: basic data, 3D visualization images, data analysis, and real-time monitoring. Adjustments and upgrades can be made according to customer needs.