This paper examines a problem called “Balancing Reconstruction with Decommissioning” of reviving Fukushima from a double disaster called the Great East Japan Earthquake and the 1F (Fukushima Daiichi Nuclear Power Plant) nuclear disaster. This issue is a typical case about sustainability and resilience in the 21st century in the Century of the Disaster. At first, this paper discusses that it is the reconstruction policy in the population decreasing and aging society with the creative reconstruction in a century, the 21st Century of the Disaster in Japan. After that, this paper examines the reconstruction policy from the Great East Japan Earthquake and the way of the Fukushima nuclear accident processing and confirm a characteristic called “incompleteness of the nuclear crisis response and surplus of the Great Earthquake disaster reconstruction policy”. Finally, from the analysis of the 1F decommissioning policy, this paper clarifies the difficulty of the issue called “Balancing Reconstruction with Decommissioning” in Fukushima, and Fukushima lectures on having possibilities to fall into a state such as “Mutual Destruction of Reconstruction and Decommissioning” without a change of the decommissioning governance in conclusion.