BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a medical snare apparatus, and more particularly, to a medical snare apparatus capable of precisely positioning a nose portion in a polyp by sequentially rotating a nose portion at a predetermined angle. The structure of the present invention includes a wire cord 100 provided with a snare portion 110 for capturing and removing body tissue at a distal end, and being operated forward, backward, and rotated within the tube 120； A movable member 220 slidably moved back and forth in the body to move the wire cord forward, backward and pivotally, and a movable member 220 coupled to the movable member 220, And an electrode (240) connected to the wire cords via a support shaft (230) to supply a high frequency current to the wire cords. And a wire cord rotating means 300 mounted on the operation unit body 210 for rotating the wire cord at a predetermined angle when the movable mouth 220 is moved forward or backward by a predetermined distance, The rotation means 300 includes a locking protrusion 310 formed at an inner circumferential surface of one side of the operation portion body 210 so as to have a movement guide passage 315 formed therebetween at equal intervals and formed with a sloped surface 311 at one side； A hollow moving cam 320 formed on the outer circumferential surface of the guide protrusion 321 to be moved along the movement guide passage 315 and having a moving cam gear portion 322 formed along the periphery at one end thereof； And the other end is connected to the support shaft 230 and the wire cord 100 while being sandwiched inside the movement cam 320. The other end of the rotation is connected to the moving cam gear portion 322, A rotation cam 330 having a cam gear portion 331 formed on the outer circumferential surface thereof and a rotation guide protrusion 332 repeatedly positioned on the inclined surface 311 and the movement guide passage 315； And an elastic
