A large tsunami caused by the Great East Japan Earthquake hit Fukushima Daiichi Nuclear Power Station (1F) of Tokyo Electric Power Company (TEPCO) on 11 March 2011. The buildings unit 1 to 4 suffered severe damage and enormous volume of radionuclides was emitted from fuels in the reactor buildings. Critical contamination was spread inside and outside 1F and contaminated water and various kind of contaminated wastes were generated. Also the wastes are generated continuously on decommissioning process and the amount and variety will increase in the future. Understanding characteristics of the contaminated wastes is important to advance activities and encourage fundamental researches for the decommissioning. For that, the sample of the contaminated water and wastes (secondary wastes, rubbles, soil and vegetation) have been collected and analyzed radioactivity, elemental composition and so on by TEPCO, Japan Atomic Energy Agency (JAEA) and International Research Institute for Nuclear Decommissioning (IRID). Obtained data are reported periodically and released through the Internet. FRAnDLi is a database of to provide those analytical data and to be used them effectively.