The safety of chemical processing systems can be improved by training operators efficiently. More than 18% of chemical process accidents are caused by human errors during the process operation[1]. However operators are becoming apart from real processes as they are becoming more automated. As a result of operator＇s lack of real experience, the possibility of operator＇s misjudgment during the emergency situation is becoming high. To educate operators more efficiently, we developed an operator education system by using recent multimedia technologies including 3D motion pictures, sound effects and interactive communications. As a case study; we developed yFES(yonsei Furnace Education System) to educate the operation of a specific fired-heater in a refinery plant. yFES consists of seven chapters : introduction, structure, operation principle, operating procedure, safety, trouble-shooting and installation/inspection. The system has been used in the field and proved to be efficient and productive :