is a shower drum type for washing the washing and preferably soaking type shower type or jet type is effective and also combination type of these types is effective a detergent tank 11 stores detergent and a rinse tank 12 stores rinse washing is done after inputting the washing and detergent tetrachloroethylene or the like into the washing tank 10 the detergent for initial use can be supplied directly through fresh detergent line l 1 to the washing tank 10 or can also be supplied through circulating line l 3 l 4 the detergent discharged from the washing tank 10 is sent by pressure to the filtering tank 16 through a detergent discharging line l 2 next a button trap 13 and next a circulating line l 3 having a circulation pump p 1 in the line the detergent after the filtering tank 16 is supplied to the washing tank 10 through a circulating line 4 the detergent discharged from the washing tank 10 is monitored on contamination level by a contamination detector d 1 mounted in the detergent discharging line l 2 the detergent supplied from the filtering tank 16 to the washing tank 10 is monitored by a contamination detector d 2 mounted in the circulating line l 4 by way of the contamination detectors d 1 d 2 a ccd camera a couple of light emitting elements and light receiving elements or a module of reflective millers and a couple of light emitting elements and light receiving elements or the like is used this dry cleaning machine includes of a.