The Functional Variants Genotyping Array refers to the mutation loci designed with chips are all loci related to specific functions, including those affecting transcription regulation, and protein structure and function. Compared with regular molecular marker locus gene chips, the locus selection of Functional Variants Genotyping Arrays is closer to the regulation of life processes, with higher functional information and polymorphism content. Functional Variants Genotyping Arrays can effectively compensate for the shortcomings of molecular marker gene chips, and are of significant importance in improving genome breeding efficiency and accelerating the pace of animal and plant improvement.