PROBLEM TO BE SOLVED: To inexpensively and easily provide an endoscope cleaning evaluation implement having a structure quantitatively and accurately confirming that a channel of an endoscope can be securely cleaned.SOLUTION: The endoscope cleaning evaluation implement includes: a connection part 1s connected to the endoscope 50 a first opening 2i into which a liquid discharged from the channel 55 can flow when the connection part 1s is connected to the endoscope 50 a second opening 2t for discharging the liquid flowing into the first opening 2i to outside not to return to the endoscope 50 a fluid circulation part 2 to make the first opening 2i communicate with the second opening 2t and an indicator disposing part 2h for disposing an indicator 3 at a position in at least part of the fluid circulation part 2 where the liquid can permeate.