This invention according to one execution form of this invention, the electrode needle in the arrangement of electrode for high frequency thermal remedy which burning , necrosis can point to the lesion region at the high frequency heat which occurs with the electrode needle, while with the knob and the electrode needle with specified hardness the easy flexible tube of deformation to relate to the arrangement of electrode for high frequency thermal remedy, to be prepared for the front of the knob, crimp and have, be able to insert to the lesion region alongside the working channel of the endoscope, the arrangement of electrode for high frequency thermal remedy where it can have the flexible tube which features that it can have the cooling line inside the electrode needle is offered.< Selective figure >Figure 1本発明は、高周波熱治療用電極装置に係り、本発明の一実施形態によれば、取っ手の前方に電極針が備えられ、電極針で発生する高周波熱で病変部位を焼灼して壊死させる高周波熱治療用電極装置において、取っ手と電極針との間に所定の硬度を持ちながら折れ曲がり変形の容易なフレキシブル管が備えられ、内視鏡のワーキングチャネルに沿って病変部位まで挿入でき、電極針の内部に冷却ラインが備えられることを特徴とするフレキシブル管が備えられる高周波熱治療用電極装置が提供される。【選択図】図1