An embodiment of the invention discloses a detection method of a tilting pole tower and a device of the tilting pole tower. In the embodiment of the invention, the detection method comprises steps of firstly obtaining an unmanned aerial vehicle aerial image of a pole tower firstly, and extracting a first group power line located at the first side of the pole tower to be detected and a second group power line located at the second side of the pole tower to be detected from the unmanned aerial vehicle aerial image; further detecting if the pole tower to be detected is under the titling state according to the extraction result of the first group power line and the second group power line. In the embodiment of the invention, the detection method and device can rapidly response the outburst natural disaster for the unmanned aerial vehicle aerial image can be obtained conveniently; specific to the routing inspection of the pole tower at one place, the manual cost and device cost are relatively low; moreover, the extraction result of the power line can directly reflect the titling condition of the pole tower to be detected; therefore, the accuracy if the pole tower to be detected is under the titling is high according to the extraction result of the power line.