The invention discloses a garden pruning robot, and belongs to the technical field of intelligent robots. The robot comprises a steering mechanism, a frame, a lifting mechanism, a pruning mechanical arm, a pruning cutter, a planet rotation mechanism, a drive device and a storage battery, wherein the steering mechanism is arranged in front of the frame, and can perform steering in real time; the storage battery is arranged under the front of the frame, and is used for supplying power to the robot; the drive device is arranged under the rear of the frame, and is used for providing enough power through four drive motors; the planet rotation mechanism is arranged on the frame, and can realize 360-degree rotation during pruning; the lifting mechanism is arranged on the planet rotation mechanism, and can be used for randomly regulating the pruning height; the pruning mechanical arm is arranged on the lifting arm; the pruning cutter is arranged on the pruning mechanical arm, and is used for pruning by adopting chains. The garden pruning robot can realize garden pruning automation, has high performance and strong practicality, can replace manual pruning, and has a high popularization value, can be used for pruning bushes in gardens having gentle, slope and other complex environments, and has remarkable functions.