A software component library management system is provided, which can effectively support both a component utilization user and a component management user in carrying out their business tasks. The component management tool 6 includes a component retrieve/pickup function unit 10 and a component administration/registration function unit 20. The component administration/registration function unit 20 is adapted to make registrations of attribute information on software components stored in the component database 5, such as relation information items representing relations between the software component and other software components. The component retrieve/pickup function unit 10 can retrieve and pickup a batch of software components related to a specific software component, based on the relation information items. The relation information item includes a slave link used to identify a slave component which a certain software component uses (slave information item), and a master link used to identify a master component by which a certain software component is used (master information item).