The invention provides an unmanned combat vehicle capable of rotating in situ, horizontally moving at random and automatically turning over. A chassis provided with hub type motor wheels is sequentially provided with a fire control system, an executing mechanism, a power system, a comprehensive controller, a storage battery and a vehicle inversion self-position-correction expansion powder stick. The power system comprises an internal combustion engine, a motor, a power generator and a clutch which are connected with the comprehensive controller and the executing mechanism correspondingly. A differential mechanism is in driving-rotating connection with wheel shafts through universal joints, and a direction executor achieves connection enabling the wheels to swing through the universal joints, connecting rods and the wheel shafts. An armored vehicle cover is buckled on the chassis, a muzzle and a gun muzzle are exposed out, and the vehicle cover is a ball shell or part of an ellipsoid shell. The vehicle cover is provided with a bin cover and a camera. A radar detection device, a navigation device, a vehicle posture sensor, a wheel rotating speed sensor and a braking mechanism are arranged. The fire control system, the storage battery, the executing mechanism, the radar detection device, the navigation device, the camera, the wheel rotating speed sensor, the vehicle posture sensorand the expansion powder stick are connected with the comprehensive controller.