To provide a high frequency treatment tool capable of achieving preferable bleeding stop of a biological tissue.SOLUTION: A high frequency treatment tool comprises, on a tip end part, a scalpel for a high frequency treatment tool comprising a pair of scissors 10 and being used for incision of a biological tissue. The pair of scissors 10 rotate in a direction where they come close to each other for shearing a biological tissue. Each of the pair of scissors 10 comprises: a blade surface 13； a slide contact surface 14 at which the scissors slide contact each other； an outside surface 15 which is a rear surface to the slide contact surface 14； and an inclined surface 16 which is provided between the outside surface 15 and the blade surface 13. The inclined surface 16 is inclined to a direction where the scissors are separated from the other scissors, from the slide contact surface 14 side to the outside surface 15 side. A surface of each of the pair of scissors 10 comprises a formation region of a non-conductive layer (insulative coat 12) and an electrode region 19 on which the non-conductive layer is not formed. At least one of the pair of scissors 10 is configured so that the electrode region 19 is formed on both of the blade surface 13 and the inclined surface 16.SELECTED DRAWING: Figure 7【課題】生体組織の止血性がより良好となる構造の高周波処置具を提供する。【解決手段】高周波処置具は、一対のハサミ部１０を有していて生体組織の切開に用いられる高周波処置具用ナイフを先端部に備え、一対のハサミ部１０は、互いに近づく方向に回動することにより生体組織を剪断可能に構成されており、一対のハサミ部１０の各々は、刃面１３と、互いに摺接する摺接面１４と、摺接面１４に対する裏面である外側面１５と、外側面１５と刃面１３との間に位置している傾斜面１６とを有し、傾斜面１６は、摺接面１４側から外側面１５側に向けて、他方のハサミ部１０から遠ざかる方向に傾斜しており、一対のハサミ部１０の各々の表面は、非導電性層（絶縁性被膜１２）の形成領域と、非導電性層が非形成となっている電極領域１９とを含み、一対のハサミ部１０の少なくとも一方について、電極領域１９が、刃面１３と傾斜面１６とに形成されている。【選択図】図７
