VNTR-polymorphism of the gene of dopamine transporter (DAT) in men of the Russian and Tatar nationalities with acute alcoholic psychoses was analyzed by method of the polymerase chain reaction. There were no differences in the distribution of frequencies of genotypes and alleles of DAT gene between the populations examined. There was association between an allele variant with 9 units of DAT gene repetition (in homozygous state first of all), and early development of alcoholic dependence and acute alcoholic psychosis.