A nuclear fusion fuel cycle plant is composed of various subsystems such as a hydrogen isotope storage and delivery system. Metal hydride beds are used for storing hydrogen isotope. We thus present details on the bed of hydrogen isotope storage for nuclear fusion fuel plants. A small DU bed was designed, manufactured and inspected. The thermal shields for the primary vessel were manufactured to reduce heat transfer from the primary vessel to the secondary vessel, and thermal loss. Helium leak inspections on the parts of primary & secondary vessels were performed. These results proved to have no leakage on the parts of the primary & secondary vessels.