An endoscope leak inspection apparatus includes an endoscope connecting section communicably connected to an inside of an endoscope, a gas feed section that communicates with the endoscope connecting section and feeds gas, a measuring section that measures an internal pressure of the endoscope, an endoscope-information recognizing section that recognizes serial numbers uniquely allocated to individual endoscopes, a storing section that stores the serial numbers and measurement results of the measuring section in association with each other, a threshold setting section that sets a threshold on the basis of measurement results in past having the same serial number stored in the storing section, and a leak determining section that compares the threshold and a measurement result by the measuring section and determines presence or absence of a leak of the endoscope.
