The invention relates to the technical field of unmanned aerial vehicle information acquisition, and in particular relates to an information acquisition unmanned aerial vehicle convenient for mounting a camera. The unmanned aerial vehicle comprises an unmanned aerial vehicle body, a lifting mechanism, a camera shooting mechanism, a telescopic mechanism, an abutting mechanism, a guide mechanism and a locking mechanism. The lifting mechanism is controlled by the unmanned aerial vehicle body, so that the unmanned aerial vehicle body flies, real-time state and information can be collected under the action of the camera shooting mechanism, detection by workers is facilitated, the camera shooting mechanism can be propped against under the action of the abutting mechanism, and shaking is prevented; meanwhile, under the action of the telescopic mechanism, mounting and dismounting of different camera shooting mechanisms are facilitated, meanwhile, the practicability of the unmanned aerial vehicle body is also improved, when the telescopic mechanism is adjusted, the telescopic mechanism is stably adjusted under the action of the guide mechanism, and after adjustment is completed, under the action of the locking mechanism, the guide mechanism can be limited, so that the telescopic mechanism is more stable and does not loosen.