An energy treatment tool includes: a heat transfer plate including a treatment surface for treating body tissue； an energy generating unit configured to generate thermal energy and transmit the thermal energy to the heat transfer plate； and a wiring unit connected to the energy generating unit and serving as an electrical conduction path to the energy generating unit. The wiring unit includes: a low thermal resistance unit； and a high thermal resistance unit that has higher thermal resistance than the low thermal resistance unit and connects the low thermal resistance unit and the energy generating unit.
