Abstract: A foldable luggage structure includes a main bag, in which two opposite movable bases are disposed at two sides. Male and female fastener members for fastening the main bag, which is folded one half, are disposed on the main bag near long sides of the main bag. Male and female fastener hooks for hooking the main bag, which is completely folded, are disposed near the outer long sides. Two wheels are disposed at two corners of the main bag. One hand strap has one end fixed to a bottom of the main bag near a middle between the two wheels, and the other end extending upward. The hand strap is fixed and positioned by at least one fixing strap disposed on a backside. Thus, the high mobility and the high convenience can be achieved and the retracted luggage structure occupies less space.