A lawn mower robot includes an inner body (160) including a plurality of wheels (1092) for traveling on both sides thereof, 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 (170) 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 (190) respectively restricting movement ranges of the plurality of support portions. Each movement range restricting portion includes an engaging portion (191) formed at an upper portion of each support portion and a movement restricting cover (193) installed at an upper portion of the inner body.
