The invention discloses an electric power patrol-oriented unmanned aerial vehicle satellite navigation spoofing detection method. The method includes the following steps: an unmanned aerial vehicle obtains navigation position information through a built-in satellite navigation sensor, and obtains a real flight direction of the unmanned aerial vehicle through an acceleration sensor and a compass sensor; whether the flight direction of navigation position information and the real flight direction of the unmanned aerial vehicle are consistent is judged through comparison, and if not, the satellite navigation of the unmanned aerial is judged to be subjected to a spoofing attack; pictures shot by a camera of the unmanned aerial vehicle are matched based on an image feature matching algorithm, and are compared with the direction and distance of the unmanned aerial vehicle which are obtained by a satellite navigation sensor, and the information is inconsistent, satellite navigation of the unmanned aerial vehicle is judged to be subjected to spoofing attach; and distance between the unmanned aerial vehicle and the ground is determined through two methods, i.e., satellite navigation and communication delay, a difference value of distance obtained by the two methods is obtained through comparison, and whether the difference value is in an error range is judged. The method comprehensivelydetects satellite navigation signal spoofing, and has the characteristics of energy conservation and high efficiency.