Abstract: Single nucleotide polymorphism （SNP） refers to the single base sequence variation in specific location of the human genome. Phenotype informative SNP has gradually become one of the research hot spots in forensic science. In this paper, the forensic research situation and application prospect of phenotype informative SNP in the characteristics of hair, eye and skin color, height, and facial feature are reviewed.

Key words: forensic genetics, polymorphism, single nucleotide, review [publication type], phenotype