Drilling type grounding needle filler tamping device and tamping method

The invention discloses a drilling type grounding needle filler tamping device and a tamping method. The tamping device comprises a tamping device first stage (4) and a tamping device tail end stage (6), and is characterized in that a tamping device middle stage (9) is connected between the tamping device first stage (4) and the tamping device tail end stage (6); and the tamping device first stage (4), the tamping device tail end stage (6) and the tamping device middle stage (9) are cylinders with hollow middle parts. The tamping method includes the steps that the filler tamping device is extended into a vertical well to be in contact with a conductive material; a grounding pin is extended into a cavity of the filler tamping device and extended out of the tail end of the filler tamping device; and an operator holds a tamping device handle to operate the filler tamping device to begin to tamp the conductive material, so that the technical problems that in the prior art, after a vertical grounding body is place