[en] To 2000 people who were randomly sampled from the basic register of residents in Fukui prefecture, we conducted a questionnaire survey asking their interest in, knowledge of and attitude toward nuclear power, to analyze which perceptions and opinions they had and factors influencing them. The ratios of respondents in Fukui prefecture who think nuclear power is safe, necessary, and should be developed more, are higher than those of surveyed residents who live in other regions where nuclear power plants had been in operation. Differences in gender and age are nearly the same as those found in the nation-wide surveys has shown. The respondents in 'Tsuruga' region, one of the centers of nuclear power research and development, are more acceptive and affirmative to the nuclear power than those in other regions, although they have less knowledge and credibility for nuclear power safety measures, such as regulation and monitoring by government, countermeasure of earthquake, training of workers and so on. We analyzed the perception of risk and the sense of security for nuclear power, and the opinions for necessity and development of nuclear power, using a regression model. According to the estimated 'Tsuruga' model, risk perception of Tsuruga respondents does not affect their opinion if nuclear power should be developed. No influence of the risk perception on their opinion for nuclear power suggest a possibility that residents have strong trust in nuclear power technology and electric power companies based on their long term experience. (author)