Abstract: A baby walker including a seat, an annular base frame, two pairs of wheels symmetrically mounted on the base frame, two links connected in parallel between the two pairs of wheels above the base frame, and two crossed supports connected between the links and the seat, wherein the base frame is comprised of an annular upper plate and an annular bottom plate; each wheel is comprised of a circular bottom shell fixedly coupled to the annular upper plate of the base frame and moved with it along the annular bottom plate of the base frame, and an upper shell pivoted to the circular bottom shell and having an arm pivoted to one end of one link.