The utility model discloses a portable ware of ascending a height, including support frame, footboard, couple, footboard detachably sets up on the support frame, the couple sets up support frame top,fastener assembly includes bayonet socket, dop, the bayonet socket sets up the one end of support frame, the dop sets up the other end of support frame, the dop with bayonet socket looks adaptation, still include cutting ferrule, elastic component, the cutting ferrule cover establish with the bayonet socket is corresponding on the support frame and can along the support frame reciprocates, the inner wall of cutting ferrule is provided with the arch, the one end of elastic component with protruding linking to each other, the other end is fixed in the cutting ferrule on the support frame, the utility model provides a pair of portable ware of ascending a height, simple structure occupies less space, convenient to carry, and easily install, dismantle.