A system for automatically managing information about printed-circuit boards includes a data file for storing stock information about the printed-circuit boards stocked in a warehouse, mounting information showing mounting positions of the printed-circuit boards on shelves of equipments, and mounting history information showing results of mounting of the printed-circuit boards. A delivery processing part detects, by referring to the stock information stored in the data file, a fact that all printed-circuit boards necessary to assemble an ordered equipment, and generates a delivery instruction which instructs all the printed-circuit boards to be delivered from the warehouse to an mounting section. A mounting processing part outputs to the mounting section a mounting instruction which instructs the printed-circuit boards delivered from the warehouse to be placed in predetermined positions in the ordered equipment by referring to the mounting information stored in the data file. A mounting information gathering part gathers the mounting history information about the printed-circuit boards placed in the predetermined positions. An output part outputs at least the mounting history information to an output equipment.