The invention relates to a hang type tray power horizontal moving mechanism which is characterized in that a top lifting device is arranged in the middle of 'crossing' for moving a longitudinal line body and corresponds to two borders of a transverse line body respectively. The top lifting device is provided with a power roller way group. The initial position of the roller face is lower than the roller face of the longitudinal line body. The power track way group is connected with a driving electric motor. The corresponding crossing section on the longitudinal line body is provided with the 'crossing' longitudinal line. The height of the roller face of the longitudinal line is equal to that of the longitudinal line body. The roller face of the transverse line body has the same height as the power track group lifted to the top utmost limit position. The invention has the advantages that the traditional ground top lifting moving mechanism is added with a novel nick type or rotating typestructure so that the cruciform or L-shaped space transverse movement of the hang type tray or small vehicle in horizontal direction on the aerial transporting wire body is achieved. The space transverse movement and the movement of the hang type tray are not interfered by the free rotation of the rotating arm or the nick. The goods are safely and smoothly transferred to other wire bodies during the process of transporting.