An arrangement structure of a stacker and a reclaimer, comprises a stacker, a reclaimer, a stacker travelling track, a reclaimer travelling track, a material input conveyor, a material output conveyor, a material storage yard, and a closed material storage shed. The stacker and the material input conveyor are inside the reclaimer, and the reclaimer upwards straddles the stacker and the material input conveyor. The stacker and the material input conveyor penetrate through an internal space of the reclaimer. An arrangement form that a rack of the reclaimer upwards straddles the stacker is adopted so that a problem of interference caused when the stacker is as high as an upper travelling platform of the reclaimer is solved. The upper travelling platform of the reclaimer does not need to be independently arranged.