The operation training simulator for refuse incineration plants was developed, which can be used for the training of the plant start/stop operations or restoring operation from unusual situations. The system was introduced to SENOKO plant in Singapore for the first time. The system consists of DCS(distributed control system) which has the same specifications as the one actually being used, and the mini-computer used for the process simulation. Trainees can practice in an operating environment which is the same as that in a center control room of the actual plant. The process model covers the major machines of the furnace, turbine and common equipment, and the trainer can easily vary the plant conditions. This report describes the outline of the system structure, that of the training course, the training scenario of the restoring operation and examples of the training results.