Abstract: The grounding penetrating radar is widely used to the geotechnical structure detection, because of the advantages of non-destructive,efficient,high anti-interference ability,easy operation,low cost,few limiting conditions,high detection precision,continuous scanning for tunnel.The grounding penetrating radar is used to detect the crack of filling in Wushan copper mine.,the applications results show that,the detection results is consistent with the actual situation.So,the grounding penetrating radar provide the safeguard for the mine safety production.

Key words: Ground penetrating radar, Filling body, Crack detection