Eight-leg wheelchair and control method thereof

The invention relates to the technical field of medical instruments, and discloses an eight-leg wheelchair and a control method thereof. The eight-leg wheelchair comprises a seat, a controller, a distance measuring unit, a horizontal sensor, front legs with wheels, front legs without wheels, rear legs with wheels and rear legs without wheels, and the controller is used for controlling each telescopic leg to rotate and/or stretch out and draw back; the included angle between the seat and the horizontal plane is kept in a preset angle range, and the seat is always supported by the four groups of legs. The width and height of the steps are measured in real time through the distance measuring unit, the levelness of the seat is measured in real time through the horizontal sensor, and then each telescopic leg is controlled to rotate and/or stretch out and draw back, so that the seat is in a horizontal state and is supported by the four sets of legs all the time, and stair climbing running and ditch crossing running