The invention discloses round wood ring cutting equipment for wood processing. The round wood ring cutting equipment structurally comprises foot cups, supporting columns, a first transmission chain, small gears, big gears, guiding wheels, a second transmission chain, a third transmission chain, a saw web outlet, a clamping device, a supporting face, a cutting device, a cross rod, a first supporting frame, a driving gear, a first motor, a center shaft, a rotation shaft, box iron and rollers. The foot cups and the bottoms of the supporting columns are in threaded connection. The supporting columns are vertically arranged. The tops of the supporting columns are vertically arranged at the bottom end of the box iron in a welding connection manner. According to the round wood ring cutting equipment for wood processing, a saw web in the cutting device can reciprocate up and down, and when cutting is needed, a wane is elevated, the saw web can cut round wood, and when saw web cutting is not needed, the saw web can be lowered into the supporting face, the saw web is effectively prevented from hurting an operator during idling, and meanwhile the service life of the saw web can be protected.