The utility model provides a fast dismantle device of walker stand and hanging wall, includes hanging wall (1) and stand (5), stand growth bar, and including shell (51), spring (53), shifting block (54) and spring bolt (55), the periphery of the front end of shell has one chimb (512), and the front end of spring bolt stretches out from lock tongue hole (514) of the preceding terminal surface of shell, the left and right sides of the lower surface at the rear portion of hanging wall respectively has one stand adapter sleeve (3), and the inner wall of stand adapter sleeve is close to bottom surface department has round recess (312), has one lockhole (316) on bottom surface (315), ins succession one take -up housing (314) in the bottom surface of stand adapter sleeve, take -up housing embedded one slider (32). The sitting posture the dual -purpose infant's walker of the formula that pushes away away can make up stand and hanging wall mutually or take apart fast after having used this kind of fast dismantle device of walker stand and hanging wall to the structure and the function of transform walker.