A lawn mower robot comprising: an inner body including a plurality of wheels for traveling on both sides thereof; an outer cover mounted at an upper portion of the inner body and surrounding an outer side of the inner body ; a handle mounted at an upper portion of the outer cover ; a plurality of support portions disposed to be spaced apart from each other at an upper portion of the inner body in a front-rear direction and in a left-right direction and elastically supporting the outer cover in the front-rear direction and in the left-right direction with respect to the inner body ; and a plurality of movement range restricting portions respectively restricting movement ranges of the plurality of support portions , wherein each of the plurality of movement range restricting portions includes: an engaging portion formed at an upper portion of the plurality of support portions ; and a movement restricting cover installed at an upper portion of the inner body and covering an upper portion of the engaging portion to restrict the engaging portion from being lifted in a length direction of the support portion , wherein the movement restricting cover further includes: a coupling portion extending upwards from an upper surface of the engaging portion in a length direction of the support portion and having an upper end portion coupled to an inner surface of the handle ; and a guide hole penetrating through an upper surface thereof and allowing the coupling portion to protrude therethrough so as to be coupled with the outer cover . an inner body including a plurality of wheels for traveling on both sides thereof; an outer cover mounted at an upper portion of the inner body and surrounding an outer side of the inner body ; a handle mounted at an upper portion of the outer cover ; a plurality of support portions disposed to be spaced apart from each other at an upper portion of the inner body in a front-rear direction and in a left-right direction and elastically supporting the outer cover in the front-rear direction and in the left-right direction with respect to the inner body ; and a plurality of movement range restricting portions respectively restricting movement ranges of the plurality of support portions , wherein each of the plurality of movement range restricting portions includes: an engaging portion formed at an upper portion of the plurality of support portions ; and a movement restricting cover installed at an upper portion of the inner body and covering an upper portion of the engaging portion to restrict the engaging portion from being lifted in a length direction of the support portion , wherein the movement restricting cover further includes: a coupling portion extending upwards from an upper surface of the engaging portion in a length direction of the support portion and having an upper end portion coupled to an inner surface of the handle ; and a guide hole penetrating through an upper surface thereof and allowing the coupling portion to protrude therethrough so as to be coupled with the outer cover . a coupling portion extending upwards from an upper surface of the engaging portion in a length direction of the support portion and having an upper end portion coupled to an inner surface of the handle ; and a guide hole penetrating through an upper surface thereof and allowing the coupling portion to protrude therethrough so as to be coupled with the outer cover . <EOS>