The article is devoted to the new ethnographic and social research results on the Karaitic religion’s minority in Lithuania and Poland. After the last partition of Poland in 1795 main part of Karaites lived in Russia and was given some privileges by the tsars too. When Poles regained their independence and created new Polish Republic Karaites declared full loyalty towards it. During II World War Karaites were not ex-terminated by the Nazis like Jews although they easily could be taken for Jews because in Karaitic liturgy Hebrew language is still present. Today in Lithuania there are two main Karaitic centres: in Trakai and Vilnius with two churches still open. While visiting Trakai it is worth to see Karaitic wooden houses with three windows situated next to a road being a sign of presence of Karaitic community composed of 154 persons.