Reduces surgical stress and the operation time, and to provide a surgical method and ESD Yogeka surgical system having excellent operability of the operation, reliability and safety. ESD Yogeka surgical system of the present invention, a magnetic to be magnetic members 22,22 ', 22' ', 22A, the 22B of small diameter which is connected to the fastening member 21 is engaged with the lesion T2a of the living tube T inside surface magnetic generation element that is sealed is attached to the endoscope tip portion 41 is inserted into the anchor 20,20 ', 20' ', 22A, and 22B, the lesion site near the living body tube, imparting an electromagnetic repulsive force to the magnetic anchor The provided magnetic flux emitting means 10,10a with, 16 15,15A, 15B, and 10b, the outside of the living body, and a, magnetic flux control means (70) for external control of the distribution of the magnetic flux emanating from the magnetic flux emitting means , direction giving an electromagnetic repulsive force to the magnetic anchor by externally controlling the magnetic flux distribution from the magnetic flux emitting means in magnetic flux control means, and away from the muscle coat T1 of the biological tube lesion that is engaged with the engaged member I will drive to.
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