An endoscope cleaning instrument and an endoscope cleaning apparatus are provided that have a simple configuration and that can be manufactured easily and at a low cost. An endoscope cleaning instrument of the invention cleans a distal end portion of an endoscope by ejecting a fluid fed from a fluid supply section towards the distal end portion. The endoscope cleaning instrument includes a connection portion that is attachable to and detachable from the fluid supply section at least one tubular portion that has a tube shape including an inner circumferential portion and an outer circumferential portion and that can introduce the fluid supplied from the fluid supply section via the connection portion into an inner space enclosed by the inner circumferential portion, and that is provided so as to enclose an outer space that can accommodate the distal end portion by means of at least a part of the outer circumferential portion and a plurality of through-holes provided in the tubular portion so as to connect the inner space and the outer space.