handpiece electrodes are installed inside the cooling unit can be equipped with cooling means are , as well as be arranged to prevent the electrode portions from overheating, it is possible to easily adjust the electrode negative temperature, each patient can be an effective control over the amount of energy required in accordance with the position of other human characteristics and tumor composed of cooling is enhanced a high-frequency heat treatment machine handpiece is disclosed. In the disclosed cooling with enhanced high-frequency heat treatment machine handpiece to the handpiece that is configured to apply a high-frequency current to the affected part is provided in the high-frequency heat treatment device, composed of a disk-like body and the hand piece, which is installed in the bottom groove is formed Handpiece handle coupled to a top surface center of the handpiece body Doedoe configured to be coupled to the lower side of the hand piece unit is filled with cooling water supplied via the hand piece body inside a bolus If the hand piece unit is coupled to the installation to the inside of the bolus, doedoe configured to be disposed between the bowler Su return of the lower electrode is provided on the lower portion, a high-frequency current generated in high-frequency generation unit is applied to the affected area an electrode unit including It is attached to the top surface of the electrode portion characterized in that configured to include a thermal element that is installed receiving the mounting groove of the handpiece body.핸드피스 내부에 설치되는 전극부를 냉각시킬 수 있는 냉각수단이 구비되어, 전극부의 과열을 방지하도록 구성될 뿐만 아니라, 전극부의 온도를 용이하게 조절할 수 있어, 환자마다 다른 인체의 특성 및 종양의 위치에 따라 필요한 에너지량에 대해 효율적인 제어를 할 수 있게 구성된 냉각 기능이 향상된 고주파 온열치료기용 핸드피스가 개시된다. 개시된 냉각 기능이 향상된 고주파 온열치료기용 핸드피스는 고주파 온열치료기에 설치되어 환부에 고주파 전류를 인가하게 구성되는 핸드피스에 있어서, 원판 형상으로 구성되고 저면에 설치홈이 형성되는 핸드피스 본체 상기 핸드피스 본체의 상면 중앙에 결합되는 핸드피스 손잡이 상기 핸드피스 본체의 하측에 결합되게 구성되되 내부에 상기 핸드피스 본체를 통해 공급되는 냉각수가 채워지는 볼러스 상기 핸드피스 본체의 하면에 결합되고 상기 볼러스의 내측으로 설치