Abstract: A circular walker has a base seat, a plurality of support legs, and an annular holder. The base seat has a disk plate, an annular wall surrounding the disk plate, an annular flange formed on the annular wall, an annular slide rail formed in the base seat, and a plurality of annular positioning plates disposed on the disk plate. Each of the annular positioning plates defines a recess hole to receive a ball. The annular holder has a ring and a band connected to the ring. The plurality of support legs are connected to the ring and disposed beneath the ring. Each of the support legs has an annular recess to receive the annular flange, a hollow taper end to receive a bearing and a spherical body. The spherical body is inserted in the annular slide rail.