The National Gene Chip Research Center - CapitalBio Corporation, the Beijing Institute of Genomics of the Chinese Academy of Sciences, Shanghai Biochip Research Center, United Gene, Sinomed etc., many well-known domestic institutions and enterprises engaged in gene testing, have already掀起ed a sweeping revolution in China's gene testing field and made exploratory contributions to the health of mankind. Meanwhile, the technical means of gene testing has gradually entered ordinary families. With the further research of scientists on human genes, more and more technologies have been recognized by the international community. These technologies include STR typing, SNP gene discovery and typing, DHPLC and fluorescent quantitative PCR, biochips, etc. They can not only accurately identify human identity, authenticate animal and plant varieties, but also detect the mutation rate of disease-related genes in the human body, predict the probability of disease occurrence, and give reasonable health planning suggestions. Ultimately, they help us achieve the goal of health preservation, longevity and well-being.