This study deeply discusses the preparation,operation process and quality control technology of oil loading and unloading operations.Pre-operation preparation includes inspecting oil transport and storage equipment,determining oil quality standards,and preparing for safety measures and environmental protection.The loading and unloading process requires a comprehensive safety check before it begins,the selection of appropriate loading and unloading methods and procedures,and real-time monitoring of oil quality.Quality control technology is crucial in the process of oil loading and unloading,including oil sampling and testing technology,temperature and pressure control technology,oil-water separation technology,and automatic control and monitoring systems.