The invention belongs to the field of rehabilitation equipment and particularly relates to an anti-tumble all-directional walking ability rehabilitation device and a working method thereof. Accordingto the technical scheme, the anti-tumble all-directional walking ability rehabilitation device comprises an all-directional chassis, all-directional wheel sets, a frame supporting mechanism, damping swing mechanisms, driving motors, a battery and a control system. The all-directional chassis is of a three-face semi-surrounding structure, the four all-directional wheel sets are arranged below the lower face of the all-directional chassis, and the frame supporting mechanism is installed on the upper surface of the all-directional chassis through the two damping swing mechanisms; the four drivingmotors are used for driving the four all-directional wheel sets to move, the battery provides energy for the device, and the control system is used for operating and controlling the device. Accordingto the anti-tumble all-directional walking ability rehabilitation device and the working method thereof, the walking ability with the controllable speed during all-directional movement can be trained, the training distance and effect are monitored in real time, the stopping function under the abnormal state is guaranteed, and continuous, controllable and safe training is achieved.