The invention relates to an in-situ type electrolytic nuclear pollution decontamination matching decontamination head. The in-situ type electrolytic nuclear pollution decontamination matching decontamination head comprises a connecting part, a propping part and a clamping part, wherein the clamping part comprises a first clamping arm and a second clamping arm which are hinged together; and the proppingpart sleeves the periphery of the connecting part and performs the axial reciprocating motion on the connecting part to drive the first clamping arm and the second clamping arm to rotate to clampor release a decontaminated object. The in-situ type electrolytic nuclear pollution decontamination matching decontamination head enables currents distributed on the surface of the decontaminated object to be more uniform, so that the decontaminated object can be reused, the use cost is reduced, it is ensured that the generated radioactive pollution is controlled under safety standards and nuclear energy is used at the same time, and the safety of staff, the environment and the public is ensured.