An endoscope apparatus includes a body portion having a light source portion which emits illuminating light for illuminating an object, an insertion portion through which a light guide that guides light originating in the light source portion is inserted, having a distal end portion to which a plurality of adapters are attachable, and which can emit light originating in an LED from the distal end portion, an operation portion which is connectable to the body portion and has an adapter detection section that detects a type of an adapter attached to the distal end portion, and a CPU which controls the light source portion and the LED according to the type of the detected adapter.
