An optical connector cleaning device which cleans a connecting terminal surface formed inside an insertion hole of an optical connector, by wiping the connecting terminal surface with a cleaning body, the optical connector cleaning device including: a main body including a feeding mechanism which supplies and wraps up the cleaning body; an extending part which extends from the main body and includes an extending tube body and a head part, the head part being inserted into the insertion hole, wherein the head part includes a tip extending part which presses the cleaning body to the connecting terminal surface; the extending tube body includes a tube base part and a tip tube part, the tip tube part being energized in an extending direction with respect to the tube base part; the tip extending part protrudes from a tip of the tip tube part; and the tip extending part is flexible.