The purpose of the research conducted for the purposes of this article was to examine the respondents’ perception of the increase in the scale of migration from Ukraine to Poland as a result of the invasion of the Russian Federation in 2022. The method of source analysis and diagnostic survey were used in the research process. The results of the research indicate that in the perception of the respondents, the increase in the scale of migration from Ukraine to Poland may pose a potential threat to security, but they positively assessed the actions of public authorities of the Republic of Poland in relation to the analyzed phenomenon.