A child's folding walker with caster wheels that is adjustable in height to permit a child to sit and touch the ground and move the walker. The walker includes four vertical legs, and upper platform that attaches to a suspended seat with leg holes configured to hold a sitting child in a suspended position above the floor. A folding support frame holds the four legs in a fixed position when used as a walker but collapses into a folding configuration for compact storage. In one embodiment, the walker includes four X-shaped leg assemblies that enable the walker to collapse into a compact vertical configuration. In another embodiment, the walker has two X-shaped leg assemblies that enable the walker to collapse into compact horizontal configuration. In a third embodiment, the walker has four vertical legs and two collapsible side frames that enabling the walker to collapse into a vertical configuration.