An endoscopic resection tool includes an ultra-sound transmission rod and a scraper member connected therewith. The ultra-sound transmission rod has a front end and a rear end on which to provide an ultra-sound receiving terminal. The scraper member has a first end and a second end with which to connect the front end of the ultra-sound transmission rod. An ultra-sound adapter seat generates an ultra-sound wave converted from outer vibration to transmit to the ultra-sound receiving terminal, and to further transmit to the scraper member.一種內視鏡之超音波腫瘤切除工具包含一超音波導桿及一刮刀,且該刮刀連接至該超音波導桿。該超音波導桿具有一導桿前端及一導桿後端,且該導桿後端設有一轉接端。該刮刀具有一第一端及一第二端,且該第二端結合於該導桿前端。利用一接頭座將外部振動傳輸至該超音波導桿之轉接端,以產生超音波振動,再由該超音波導桿之導桿前端將該超音波傳導至該刮刀上。5‧‧‧超音波手術工具502‧‧‧外保護層51‧‧‧刮刀510‧‧‧刮刀本體511‧‧‧橫桿