A bipolar electrosurgical instrument has a handle and an operation tool. The operation tool is mounted on a front end of the handle and has multiple holes densely formed in and spread over at least one working surface of the operation tool. With the multiple holes formed on the at least one working surface of the operation tool, tissues of a surgical site can be heated uniformly and adhesion of the surgical site is minimized. Moreover, since the multiple holes are directly formed on the at least one working surface, the multiple holes do not become shallow under long-term use and no toxic gas would be released when the operation tool is heated to high temperature. Accordingly, anti-adhesion effect of the operation tool and health of medical staffs can be assured.一種雙極電燒器械，其包括一握柄與一裝設於該握柄之一前端部的操作工具，該操作工具具有至少一工作面，該工作面上內凹成形且密佈複數凹槽。藉該工作面上所設之凹槽可有效減少在手術過程中所產生之沾黏現象，且由於該凹槽係直接成形在該工作面上，不會因長期使用而損耗，故可確保該操作工具之抗沾黏效果，再者，該操作工具在使用的過程中也不會因為高溫而產生毒氣，故醫療人員及患者之健康可因此而有所保障。
