A surgical operating apparatus includes a sheath, a probe body which is inserted through the sheath, and in which ultrasonic vibration is configured to be transmitted, a probe distal end portion which is provided at a distal end portion of the probe body and configured to function as one of bipolar electrodes, and a jaw which is rotatably supported on a distal end portion of the sheath, has an engaging surface which is engaged with the probe distal end portion, and has a second electrode section which is the other of the bipolar electrodes, wherein the jaw includes, at a distal end portion of the engaging surface for engagement with the probe distal end portion, a distal end chip which tolerates a positional displacement relative to the probe distal end portion when the jaw is engaged with the probe distal end portion.
