The utility model discloses a ground connection downlead connector for conduction testing, including be used for scratching ground connection band iron epidermis and press from both sides the articulated connection of tight solid ground band iron last tong arm and lower pincers arm, be used for the upward insulating operating handle and the test binding post that move of tong arm and lower pincers arm of drive, the ability is accurate, sensitive, the conduction of rapid survey ground connection downlead, improves verification efficiency, reduces test time, and the measuring of detectable one -shot need not repeatedly detect, and easy operation is convenient, and efficiency of software testing gao ke regularly carries out the test of electric integrality to earthing device.