All DNA sequences of certain individual genome can be determined in one time through genomic sequencing, i.e. WGS (whole genome re-sequencing). Detect the variation on the genome level, including SNP, InDel, SV and CNV, by combining the analysis on biological information. As a powerful research tool, genomic sequencing is widely applied in scientific and clinical research, and its huge sequencing data provide comprehensive basis for analyzing the interindividual difference, population evolution and clinical disease research.