A lawn mower robot includes an inner body (160) including a plurality of wheels (1092) for traveling on both sides, an outer cover (100) mounted at an upper portion of the inner body and surrounding an outer side of the inner body, a handle (120) 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, a prop portion (172) mounted at an upper portion of each of the plurality of support portions and fastening the outer cover and the support portion, and a protrusion portion (173) extending upwards from an upper surface of the prop portion and protruding by penetrating through the outer cover.
