[en] Purpose: To attain man-power saving and effective processing in the cleaning and administrating steps of working cloths in a radioactive material handling facility. Method: Radiation monitors, chute, conveying bags, storage lines, auxiliary charging chute, finishing equipments, automatic classifying circle conveyors and the likes are disposed to the up- and down-stream of a dry cleaner step, and the information processings and operation controls for each of the equipments are adapted to be carried out systematically. The specific items for the information to be handled are the amount of cloths to be cleaned, accumulation amount of conveying bags, operation states of the dry cleaner, contamination degree of cloths, operation states of the finishing equipments, storage amount of cloths in the storage area and the like. As the administrative function, administration of working cloths, control of secondary wastes, and preparation of operation recordings for each of the equipments are carried out. (Kamimura, M.)