Many polish people perceive differences between the cultures and societies of the Western and Eastern Europe. For years Ukrainians were described in entirely pejorative terms, because of difficult relationships between Poland and Ukrainian Insurgent Army during the Second World War. The purpose of this article is to describe the basic terms of sociology such as nation, collective consciousness, national stereotypes, national identity, and the role and influence of the negative stereotypes on the image of Ukrainians in polish society. Polish people believe that their social values are in sharp contrast to the Ukrainians ones, but this negative perspective was abandoned after Orange revolution and revolution in 2014. The reports and analysis of the attitudes of public opinion emphasize that the Polish public have changed their opinion towards Ukrainians.