Tree climbing robot

The invention provides a tree climbing robot which comprises a control system and a plurality of supporting joints, wherein the supporting joints are rotatably connected end to end to form an open-ring supporting frame. Suspended ends of the supporting joints located at the two ends of the open-ring supporting frame correspondingly are detachably connected. Each supporting joint is provided with two sets of symmetrical power assemblies. Each power assembly comprises a support connected to the corresponding supporting joint, a climbing wheel and a climbing motor, wherein the climbing wheel and the climbing motor are mounted on the support and are in transmission connection. The included angle between the plane where each climbing wheel is located and the corresponding supporting joint is an acute angle. The climbing motors are in communication connection with the control system. When the robot is used, the advancing direction of the climbing wheels deviates from the axial direction of a trunk by a certain angle, the climbing wheels are not prone to slipping on the trunk, and the climbing speed is high; and the tree maintenance efficiency is relatively high, barks are not damaged, and the load is relatively high.