Autonomous variable-amplitude mowing unmanned vehicle

The invention discloses an autonomous variable-amplitude mowing unmanned vehicle. The autonomous variable-amplitude mowing unmanned vehicle comprises an unmanned vehicle body and further comprises a disc mowing device, reciprocating type mowing devices and an environment detection device, wherein moving wheels are installed on the two sides of the unmanned vehicle body, and a driving module is arranged between the moving wheels and the unmanned vehicle body; the disc mowing device is arranged at the lower end of the unmanned vehicle body; the reciprocating type mowing devices comprise fixed knife rests which are arranged on the two sides of the unmanned vehicle body, movable knife rests are arranged at the lower ends of the fixed knife rests, and angle adjusting assemblies and reciprocating expanding assemblies are arranged at joints of the fixed knife rests and the unmanned vehicle body. According to the autonomous variable-amplitude mowing unmanned vehicle, the disc mowing device and the reciprocating type