Drinking alcohol during pregnancy can cause a child to develop a number of developmental disorders, known as the fetal alcohol syndrome, which affect the physical, emotional, social and cognitive spheres. Among these deficits, phonemic hearing disorders, which negatively affect the mastery of linguistic and communicative competence, play an important role. The collected research material shows phonemic hearing disorders in almost 50% of 6-year-olds with FAS (control group: 12%) and 21% of 10-year-olds with FAS (control group: 5%). The type of difficulty in both groups is the same, because there was a similar system of disturbed phonological categories (fluency: vibration the degree of closeness of speech organs, voicing: voicelessness). In children with FAS, attentional concentration and auditory memory deficits are also noticeable, manifested by problems with remembering and comparing pseudo-words.