Capturing device of underwater unmanned vehicle

The invention discloses a capturing device of an underwater unmanned vehicle, and relates to the technical field of underwater equipment. Comprising a capturing platform, and a plurality of multi-rigid-body mechanical arms are symmetrically arranged on the capturing platform; the multi-rigid-body mechanical arm comprises a plurality of rigid body units which are sequentially connected, the multi-rigid-body mechanical arm is connected with the capturing platform through a vertical rotating shaft, the rigid body unit, close to one end of the capturing platform, of the multi-rigid-body mechanical arm is a rigid body root unit, one end of the rotating shaft is fixedly connected with the bottom of the rigid body root unit, and the other end of the rotating shaft is connected with a hydraulic motor; the hydraulic motor and the rigid body root unit are located on the two sides of the capturing platform correspondingly. The rotating shaft penetrates through the capturing platform and is rotationally matched with the