A modular movable robot includes a lower plate provided with a traveling unit, an upper plate spaced above the lower plate, a plurality of lower supporting frames vertically elongated between the lower plate and the upper plate, a top plate spaced above the upper plate, a plurality of upper supporting frames vertically elongated between the upper plate and the top plate, and a housing surrounding edges of the lower plate, the upper plate, and the top plate. A longitudinal length of the housing is longer than a horizontal width of the housing.