The present invention provides a wireless network node radio frequency deviation online adaptive correction device. The device comprises a first arrangement module, a second arrangement module, a first sending module, a first receiving module, a reference node selection module, a starting module, a third arrangement module, a second sending module, a second receiving module, a fourth arrangement module and a fifth arrangement module. The wireless network node RF frequency deviation online adaptive correction device is able to perform dynamic regulation of the RF frequency deviation of a wireless network node in an on-site application environment so as to improve the communication adaptability of the wireless network node, reduce the precision requirement of a wireless transceiver on elements and decrease the production cost of the wireless transceiver.