At present, the use of gene editing technology to enable humans to possess the characteristics of specific animal survival advantages faces many major issues, including ethics, technical feasibility, potential risks, etc. In practice, it is not allowed and should not be tried. Although gene editing technology can theoretically manipulate genes, there are complex differences between human genes and animal genes. Simply transplanting animal dominant gene fragments into the human genome and expecting to produce the desired function is extremely challenging and may cause serious consequences. For example, the direct introduction of genes related to cold resistance may seriously disrupt the body's existing physiological balance and regulatory network, leading to unpredictable health problems; the introduction of genes related to rapid self-healing ability may also disrupt the body's normal tissue repair mechanism and immune balance. At the same time, such research seriously violates the principles of ethics and morals, and will cause a series of social, ethical, legal and other disputes and issues, challenging human dignity and values. We should mainly apply gene editing technology to ethical medical and scientific research fields such as disease treatment and prevention, rather than for inappropriate changes in human characteristics.