The relevance of this article is based on the aim to fulfil the lack of understanding of public perception on nuclear energy in Lithuania. The results of the empirical survey (public poll carried out in 2013) are used to explain the public perception of nuclear energy and its contextual aspects (safety, economic benefit, possible new challenges, personal knowledge). To show the distribution of the attitude among the public cluster analysis was performed through which respondents were divided into two groups. The 1st cluster represents that part of the public which is well educated, actively working and actively contributing to the state economy. Meanwhile the 2nd is less educated, less active economically and more dependent on social security programs part of the public. The cluster analysis reveals small, but statistically significant differences in attitude between the clusters.