Abstract
Hiroshima which was destroyed by only one Atomic Bomb in 6th August 1945 and after the Second World War was reconstructed and developed as a peace city or peace memorial city. In the early reconstruction planning period, many planning ideas of peace city or peace facilities were proposed and the characteristics of city or keyword of Hiroshima was peace. On the other hand, planning idea of peace memorial city was proposed in a critical phase, that is to say, in a financial crisis, therefore Hiroshima Peace Memorial City Construction Law was enacted under thus condition. Then it is sure that the planning idea of peace memorial city was means itself in a sense under reconstruction, but now Hiroshima has a clear important role rather than at one time.
