The ultrasonic cutting machine for surgical operation according to the present invention ejects a gas to one side of the upper surface of the blade 22 and has a pair of ejection holes 221a and 221b which are formed to be spaced apart by a predetermined distance from each other, and the blades 22 at left and right ends thereof. A pair of roofs 222a, which cover the upper portions of the pair of blow holes 221a and 221b from adjacent positions and face each other, are opened to form a pair of discharge ports 230a and 230b parallel to each other. 222b and a plurality of scattering protrusions 240 formed to have a predetermined height between the pair of discharge ports 230a and 230b so that the gas ejected from the pair of discharge ports 230a and 230b can be scattered around. And a pressure sensing opening and closing unit 50. Surgical ultrasonic cutting machine according to the present invention can cool the heat generated during the ultrasonic cutting used in the laparoscopic surgery at the tip end to prevent the necrosis of the tissue due to excessive heat contact and is ejected from the blade The pressure of the cooling gas pushes the tissue next to the blade to secure the field of view around the surgery, and the gas emitted from the gas ejection hole is dispersed without being directed to one place, which does not induce vibration of the surrounding tissue. There is an effect that it is easier to secure, and there is a markedly less malfunction due to tissue residues.
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