The present invention relates to a surgical treatment apparatus which uses both ultrasonic vibration and high-frequency current to carry out a surgical treatment on living tissue. The present invention is directed to provide a surgical treatment apparatus in which sparking is prevented. The surgical treatment apparatus is characterized in that a regulating section (51) of a grip member (33) is insulated from an electrode section (58), the regulating section (51) being configured to contact a treatment section (32) before the electrode section (58) to regulate contact between the electrode section (58) and the treatment section (32) when the grip member (33) is closed relative to the treatment section (32) after a receptacle (66) is worn more than a predetermined amount.
