A luggage structure is disclosed to include a hard plastic body internally decorated with a curtain, a metal reinforcing inner frame and a metal reinforcing outer frame respectively fastened to inner and outer diameters of the hard plastic body, a flexible supplementary frame attached to the topmost edge of the hard plastic body and riveted to the metal reinforcing inner frame, a fabric cover fastened to the flexible supplementary frame and adapted to close/open the luggage, and a fabric shell riveted to the metal reinforcing outer frame and covered over the flexible supplementary frame.