The invention relates to the field of unmanned aerial vehicles, in particular to an automatic grabbing, transporting and rescuing device for an unmanned aerial vehicle. Comprising an unmanned aerial vehicle body; the cabin is fixedly connected with the lower end of the unmanned aerial vehicle body; the bearing mechanism is connected with the cabin and comprises a gradienter, a bottom cylinder, a sliding seat and a top plate, the bottom cylinder is slidably connected with the cabin, the top plate is arranged on the inner side of the bottom cylinder, the sliding seat is slidably arranged at the upper end of the top plate, and the gradienter is arranged below the top plate; the expansion grabbing mechanisms are sequentially arranged at the upper end of the top plate at equal intervals in an array mode, each expansion grabbing mechanism comprises two turnover mechanisms, each turnover mechanism comprises a sliding plate, a turnover plate and a bottom frame, the sliding plates are arranged at the upper end of the top plate in a sliding mode, the turnover plates are rotationally connected with one sides of the sliding plates, and the bottom frames are arranged on one sides of the turnover plates in a sliding mode; the flexible clamping jaws are fixedly connected with the side, away from the bottom frame, of the overturning plate. According to the device, people and objects can be conveyed, the safety in the conveying process can be improved, and the people and the objects are prevented from being damaged in the conveying process.