The utility model provides an air supply device with an ion generating function. The air supply device is provided with an air supply structure which can evenly provide ions generated by ion generating parts and enable the ions to be dispersed in a high-efficiency mode. The air supply device (M1A-M1C) with the ion generating function comprises an air supply fan, an air supply route which is connected with an outlet of the air supply fan and an ion generating device (5) which is arranged in the air supply route. The ion generating device (5) comprises a plurality of ion generating parts (51a, 51b, 52a and 52b) which are arranged at set intervals. The arraying direction of the plurality of ion generating parts is in intersection with the circulation direction of the air supply route. The ion generating device (5) is provided with an air direction changing device (7c) which restrains air flow passing among the ion generating parts. Due to the fact that the invalid air flow which passes among the ion generating parts of the ion generating device is reduced, the air flow directly passes through the ion generating parts can be increased.
