Gamma aminobutyric acid (GABA) is a major inhibitory neurotransmitter. Because of its importance and diverse functions, studies of single nucleotide polymorphisms in the GABA receptor genes are of great significance, which may produce useful molecular markers for genetic analysis of neurological disease, and possibly lead to the discovery of pathogenic mutations. We identified eleven SNPs in the entire exon regions, immediate intron regions and promoter region of human GABA receptor gamma2 gene by direct sequencing. In this discovery, 2 non-synonymous cSNPs and 1 splicing variant are found.