A moving robot comprising: a main body forming the exterior appearance; a moving means for moving the main body; a bumper configured to protrude on the outer perimeter of the main body; impact sensors placed at an angle on the main body to sense the movement of the bumper; pressure parts formed in a bent shape at the end of the impact sensors to apply pressure on the impact sensors when the bumper moves; and a movement guide part for restraining the movement of the bumper, wherein the movement guide part comprises: protruding guides that protrude from the main body and restrain the movement of the bumper; and bumper guides that each have a guide hole around the protruding guide and guide the movement of the bumper; characterized in that the bumper guides comprise: a rear bumper guide placed at the rear of the bumper on a virtual centerline (X-X') that divides the bumper into left and right halves; and a pair of front bumper guides placed in front of the rear bumper guide, symmetrically to the left and right of the centerline (X-X'); and wherein the bumper guides each have a kite-shaped guide hole, and the angle (θ4) formed by the rear corner of the rear bumper guide is smaller than the angle (θ3) formed by the rear corners of the front bumper guides. a main body forming the exterior appearance; a moving means for moving the main body; a bumper configured to protrude on the outer perimeter of the main body; impact sensors placed at an angle on the main body to sense the movement of the bumper; pressure parts formed in a bent shape at the end of the impact sensors to apply pressure on the impact sensors when the bumper moves; and a movement guide part for restraining the movement of the bumper, wherein the movement guide part comprises: protruding guides that protrude from the main body and restrain the movement of the bumper; and bumper guides that each have a guide hole around the protruding guide and guide the movement of the bumper; characterized in that the bumper guides comprise: a rear bumper guide placed at the rear of the bumper on a virtual centerline (X-X') that divides the bumper into left and right halves; and a pair of front bumper guides placed in front of the rear bumper guide, symmetrically to the left and right of the centerline (X-X'); and protruding guides that protrude from the main body and restrain the movement of the bumper; and bumper guides that each have a guide hole around the protruding guide and guide the movement of the bumper; characterized in that the bumper guides comprise: a rear bumper guide placed at the rear of the bumper on a virtual centerline (X-X') that divides the bumper into left and right halves; and a pair of front bumper guides placed in front of the rear bumper guide, symmetrically to the left and right of the centerline (X-X'); and a rear bumper guide placed at the rear of the bumper on a virtual centerline (X-X') that divides the bumper into left and right halves; and a pair of front bumper guides placed in front of the rear bumper guide, symmetrically to the left and right of the centerline (X-X'); and wherein the bumper guides each have a kite-shaped guide hole, and the angle (θ4) formed by the rear corner of the rear bumper guide is smaller than the angle (θ3) formed by the rear corners of the front bumper guides.