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 . <EOS>