A conveyor system for conveying documents or the like in a building or the like provided with a master vertical route having a vertically arranged endless master belt, and branched routes as many as floors, comprising many conventional horizontal endless belts and many vertically arranged endless secondary belts similar to the master belt. A conveying box is adapted to be carried from a station in any floor by the vertically arranged endless belt by the action of the magnetism and conventionally horizontally and removed automatically from the system at an appointed removing station in an appointed floor by virtue of the action of the magnetism in a different manner from the above action. A destination selecting means is provided in the conveying box and adapted to cooperate with selecting means provided in the vertical routes. A reversing means is provided under the lowermost reversing end of the vertically arranged endless belt.