The purpose of the present invention is to provide an energy applying structure and a treatment tool which can reduce load on an adhesive member. The energy applying structure (10 (10)) includes: a heat transfer plate (11) a heater (12) on which a resistance pattern (1222) and a connecting part (1221) are formed an adhesive member (13) and a reinforcing member (14) which is disposed facing the other surface (1212) of the substrate (121). The adhesive member (13) has a first area for bonding the heater (12) to the heat transfer plate (11) and a second area that juts out beyond the heat transfer plate (11) on the connecting part (1221) side and covers a portion of the connecting part (1221). The reinforcing member (14) comes into contact, on the other surface (1212), with a first position (P1) which is positioned more toward the connecting part (1221) than a boundary position (P0), the boundary position (P0) being an end of the heat transfer plate (11) on the connecting part (1221) side, and with a second position (P2) which sandwiches the boundary position (P0) with the first position (P1).Lobjectif de la présente invention est de fournir une structure dapplication dénergie et un outil de traitement qui peuvent réduire la charge sur un élément adhésif. La structure dapplication dénergie (10 (10)) comprend : une plaque de transfert de chaleur (11) un dispositif de chauffage (12) sur lequel un motif de résistance (1222) et une partie de connexion (1221) sont formés un élément adhésif (13) et un élément de renforcement (14) qui est disposé en regard de lautre surface (1212) du substrat (121). Lélément adhésif (13) a une première zone destinée à lier le dispositif de chauffage (12) à la plaque de transfert de chaleur (11) et une seconde zone qui fait saillie au-delà de la plaque de transfert de chaleur (11) sur la partie de connexion (1221) et recouvre une partie de la partie de connexion (1221). Lélément de renforcement (14) vient en contact, sur lautre surface (1212),
