An endoscope accessory case includes: a case body made up of a bottom portion and an impermeable trunk portion, the case body including an opening portion provided in a top face, and a fluid introduction port configured to introduce a fluid； and an impermeable lid, the lid including a contact portion configured to come into contact with the case body, and a bubble lead-out edge located at a position apart from an inner circumference of the case body and configured to lead out bubbles separated from endoscope accessories when the endoscope accessories held in the case body are agitated by being pushed by the fluid, the lid being configured to detachably cover the opening portion.
