The oil depot stores a large number of flammable and explosive materials. The operation process of the equipment is relatively complex and prone to accidents. Therefore, employees can only get on the job after training. The traditional training system is biased theory, and the training effect is poor. Taking Unity3D as the development platform, this paper develops an interactive virtual oil depot training system. The system adopts C# as the development language of interactive script and SQL Server for data management. It implements the functions of equipment attribute query, equipment interaction operation, and important process flow simulation in the form of first person view roaming. The system has a very real three⁃dimensional effect and interaction function, and strengthens the training effect of the oil depot staff.