The subject of our paper is as follows: Special competencies of primary school teachers in integrated teaching conditions. Recently, discussions on integration of pupils with special needs into general education schools have become an important issue. Interviews with teachers demonstrate that teachers are not prepared to accept such pupils in their classes. This issue was discussed by many scholars such as J. Ambrukaitis (2002, 2004, 2005), A. Galkienė (1999, 2003, 2005), B.Valkaitienė (2004), J.Ruškus (2000, 2001, 2002), and others. Most attention was given to the defining of competencies of the teachers who work with pupils having special needs, whereas little attention was given to primary school teachers who provide the first knowledge and the basis for the pupils’ effective interpersonal communication. The problem analysed in our paper is as follows: the special competencies of the primary school teachers who work with heterogeneous forms, which are important for the education of pupils with special needs. In order to analyse the above-mentioned problem, the following goal was set: to define the special competencies which have to be demonstrated by primary school teachers who work in integrated education conditions.