Abstract: The use of miniprocessor for multi-way oil loading system for Oil terminal is described which improves loading operation and measurement accuracy, and facilitates manager's work. The amount of power spent on loading operations is reduced. This system consists of miniprocessor, driving unit, transducer unit and actuator unit. It is proved that the system can offer failfree, multifunctional, controllable, correct and economical operations. It is also showed that the new system is of wide application.