The invention relates to an inspection well repairing machine, in particular to a spherical inspection well repairing machine. The spherical inspection well repairing machine comprises a dragging device and a working device; the working device comprises a skeleton structure, a fuel oil engine, a power control device, a saw blade device, a rotary rolling disc device and a hydraulic device; the skeleton structure comprises a chassis, a rotary rolling disc, a rotary disc, a horizontal moving support, a vertical moving support, a wheel lifting rack, wheels, a support, a water tank, a lifting guide rail and an engine cover; the power control device comprises a PLC, a rotary rolling disc driving hydraulic motor, an accelerator driving motor, a hydraulic lifter and a storage battery. According to the spherical inspection well repairing machine, a hydraulic power station is arranged, the size of the cutting circumference can be adjusted, and therefore the spherical inspection well repairing machine can meet the cutting requirements with various sizes; in addition, a circumferential groove cut by a spherical arc-shaped saw blade is shaped like a big-end-up pan bottom, a repaired base body is not liable to sink through the interaction force between an entirety formed by filled auxiliary materials and the machine, and then the repairing quality is improved.