An endoscope cleaning/disinfecting apparatus according to the present invention includes a chemical bottle 100, an insertion portion 80, a chemical receiving portion 62, a blade portion, a first limit switch 81 and a second limit switch 82. When the chemical bottle 100 is moved to a first position, the first limit switch 81 changes from off to on to detect the first position, when the chemical bottle 100 is inserted to a second position at which an inner face of the chemical receiving portion 62 and a spout portion are aligned to each other, the second limit switch 82 changes from off to on to detect the second position, and when the chemical bottle 100 is inserted to a third position at which a stopper portion is opened, the first limit switch 81 is released by a stepped portion 103 from pressing by the chemical bottle 100, and thereby changes from on to off to detect the third position.
