[en] A preliminary design study of radio active waste processing and storage plants has been carried out for the ITER-CDA like fusion experimental reactor. The present report describes specifications of major components, system configuration, and building layout of the following plants; (1) Review of industrial technology for processing low level solid wastes from commercial nuclear power stations in Japan, (2) Water distillation plant for tritium reduction of the fusion experimental reactor primary cooling loop, (3) Water distillation plants for detritiation of tritiated waste water generated from the reactor building tritium safety systems, (4) Low level solid wastes processing facilities, (5) High level rad-wastes transportation facility, (6) Storage facility (5-year capacity) for the high and low level solid wastes. It was quantitatively clarified that realistic design of fusion experimental reactor with small production of radio active wastes is one of the key concerns for the realization of its construction in the early next stage. (author)