The utility model discloses an air cooling island radiating fin cleaning device, it is including moving chassis, dust catcher motor, collecting box, main frame, suction hood support frame and suction hood, and the air intake of dust catcher motor feeds through through dust absorption pipe and suction hood inside, and the air outlet of dust catcher motor feeds through through going out tuber pipe and collecting box inside, the suspension cylinder top of suction hood support frame is articulated with the suction hood outer wall. The advantage: utilize air cooling island radiating fin cleaning device clear up radiating fin, utilize in suction that the dust catcher motor produced collects the collecting box with dust in the radiating fin gap and debris, on the one hand, can avoid debris such as dust to cause repeated jam to radiating fin, thoroughly solve the problem of debris secondary jams such as dust, on the other hand can simplify the clearance process, save the water resource, reduction in production cost, and the normal operating of air cooling unit is guaranteed in the phenomenon appearance of stopping to damage radiating fin stability because of high -pressure water washing.