The present invention relates to a waist exercising apparatus, and more particularly, to a waist exercising apparatus in which a waist portion refracted when a user is lying is manipulated by the power of a motor to form a pair of first and second spinal- To correct both the bending and rotational deformation of the workpiece. The configuration is as follows. A support base (120) fixed to the body (3)； The hinge 121 of the supporter 120 and the hinge hole 131 of the rotary member 130, (130) which is rotatable by a predetermined angle in the width direction of the upper body support (4) and whose longitudinal direction is positioned in the longitudinal direction of the upper body support (4)； An actuator 140 connected to the rotary member 130 to rotate the rotary member 130 at a predetermined angle about the hinge 121 as a center axis, The first and second rotors 150 and 151 corresponding to both ends of the hinge hole 131 of the rotary member 130 and vertically installed at both ends in the longitudinal direction of the rotary member 130 are rotatably installed at predetermined angles, When the upper side of the first and second rotors 150 and 151 is positioned above the rotary member 130 The lower side of the first and second rotors 150 and 151 is positioned below the rotary member 130, The upper and lower rotors 150 and 151 are supported by the first and second rotors 150 and 151 and fixed to the waist support sheets 160 and 161, The lower ends of the first and second rotors 150 and 151 are respectively formed with first and second bending portions 153 and 154 bent in the direction of the hinge 121 so that the first and second bending portions 153 and 154 And the other side of the support rods 170 and 171 is connected to one side of the horizontally positioned first and second support rods 170 and 171 in the width direction and is connected by the articulated joints 172 bent in four directions, And a second polygonal joint (173).본 고안은 허리 운동기구에 관한 것으로서, 더욱 상세하게는 사용
