A water leakage checking apparatus 1 includes: a plurality of attachment portions 2a, 2b for attaching an endoscope 100a a water leakage sensing portion 4 that communicates with the plurality of attachment portions 2a, 2b and simultaneously carries out a plurality of items of a water leakage check menu and an endoscope information reading portion 5 that reads endoscope information from the endoscope 100a. Also, the water leakage checking apparatus 1 includes: a control portion 6 that determines an item of the water leakage check menu based on the read endoscope information, assigns the determined item of the water leakage check menu to one of the plurality of attachment portions 2a, 2b, and outputs attachment portion identifying information for identifying the assigned one of the attachment portions 2a, 2b and a notifying portion 7 that notifies the attachment portion identifying information outputted from the control portion 6.