Eight years have passed since the radioactive caesium contamination of farmland, inland waters, and coastal waters mainly in Fukushima Prefecture, which originates from the TEPCO's Fukushima Dai-ichi Nuclear Power Plant Accident. We summarized the past activities and the current situation, and countermeasures to be considered in the future. From agricultural viewpoint, long-term appropriate management of soil potassium is required as a countermeasure to control transfer of radioactive caesium from soil to plant. From fisheries viewpoint, mid-to long-term support and intervention for restoration and revitalization of marine and freshwater fisheries will be necessary because both fisheries have more or less suffered from various problems derived from radioactive caesium contamination of fishery products.