The invention discloses an RFID auxiliary scanning control method and device for unmanned aerial vehicle. The scanning control method comprises the following steps: controlling an unmanned aerial vehicle to shoot power grid equipment; acquiring shooting content of the unmanned aerial vehicle; extracting feature value on the shooting content; judging whether the shot content contains an RFID tag ata correct position or not; if the shooting content contains the RFID tag at the correct position, controlling an unmanned aerial vehicle to scan the RFID tag; if the shot content does not contain theRFID tag at the correct position, continuing to judge whether the shot content contains the RFID tag or not; if the RFID tag exists in the shooting content, controlling the unmanned aerial vehicle tomove; and if the RFID tag does not exist in the shot content, reading the next shot content or the next picture of the shot content. The RFID tag can be accurately judged, and the position of the unmanned aerial vehicle is adjusted through the image recognition related feature values, so that the scanning efficiency and success rate are improved.