PROBLEM TO BE SOLVED: To provide a gripping treatment device capable of improving coagulability of a biological tissue and encapsulating the biological tissue in a stable manner in a treatment mode in which an ultrasonic vibration is not used.SOLUTION: In a probe conductive part 23 of a gripping treatment device, a distance from a jaw conductive part to the probe conductive part is a first distance in a first state in which a first electrode facing surface 153 is disposed facing the jaw conductive part 93, and a distance from the jaw conductive part to the probe conductive part is a second distance smaller than the first distance in a second state in which a second electrode facing surface is disposed facing the jaw conductive part. The gripping treatment device includes an operation input part for performing the switching between the first state and the second state.【課題】超音波振動を用いない処置モードにおいて、生体組織の凝固性が向上し、かつ、安定して生体組織を封止することが可能な把持処置装置を提供する。【解決手段】把持処置装置のプローブ導電部２３では、ジョー導電部９３に第１の電極対向表面１５３が対向配置される第１の状態において前記ジョー導電部から前記プローブ導電部までが第１の距離となり、前記ジョー導電部に第２の電極対向表面が対向配置される第２の状態において前記ジョー導電部から前記プローブ導電部までが第１の距離より小さい第２の距離となる。前記把持処置装置は、前記第１の状態と前記第２の状態との間の切替えを行う操作入力部を備える。【選択図】図２４
