There are few English publications on various impacts of Fukushima nuclear disaster on agri-food secor in Japan. This paper fills the gap and presents results of a study on implications of Fukushima nuclear disaster for Japanese agri-food chains. Firsly, immediate and short-term radiation effects, and effects on nearby population, safety regulation and inspection system, markets and consumer’s behavior, agrarian and food products, health, and economic impacts on farming and agri-businesses, are assessed. Next, overall shorter and longer-term impacts on agriculture, food industries, and consumers in Fukushima region, neighboring regions, and other parts of Japan are estimated.