The invention provides a cable digging tool, and the cable digging tool is additionally provided with a personal protection mechanism. The personal protection mechanism carries out the detection of a cable digging environment where a worker is located through a set sensor group and an image sensing device, and then notifies the worker of the safety of the cable digging environment through a light-emitting unit. Compared with a cable digging device with only one digging function in the related technology, the tool provided by the invention can timely remind the worker of the electric shock and fire conditions in the current cable digging environment through the personal protection mechanism, and prevents the emergency conditions from causing damages to the worker who digs the cable.