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.