With the advancement of science and technology and industrialization, the pollution of human living environment has seriously affected human reproductive safety. The quantity and quality of global human sperm is declining. From the recent 15th anniversary of the Chinese Medical Association’s Branch of Male Medicine and the 5th Chinese Male Forum held in Beijing, we learned that the proportion of azoospermia, oligospermia and weak spermatozoa among male infertility patients has increased in the past five years; sperm density, sperm motility and sperm viability have shown a decreasing trend. Environmental pollution is the culprit of male infertility in the human living environment is full of various chemical substances, and these chemicals have different degrees of impact on human survival and life. The impact on human reproductive function has three characteristics: first, long-term, some toxins are from the fetal period through the mother’s body began to work, affecting the differentiation of the reproductive system, after the development of the reproductive system, affecting its structure and function; second, hidden, its toxic effects in the unconscious, until the discovery of irreversible damage has often occurred; third is the role of multiple pathways, toxic substances not only The third is the multiple pathways of action, toxins can not only enter the body through the digestive tract, respiratory tract, but can also be absorbed through skin contact. The impact of modern social life on male infertility. The incidence of anxiety, depression and psychosis is on the rise in modern cities due to fierce competition and stressful life. Men have a low libido, an increase in sexual dysfunction and a decrease in fertility. There are couples who have normal indications for fertility but cannot get pregnant, but after adopting a child, the mental stress is released and the couple is not anxious to have another child in their minds when they suddenly get pregnant after six months. Studies have concluded that mental stress puts the body in a state of chronic stress, and the resulting emergency hormones, mainly catecholamines such as epinephrine, norepinephrine and dopamine, affect the hypothalamic-pituitary-gonadal axis, causing sexual dysfunction and a decline in sperm quality. The effect of high-temperature working environment. High-temperature workshops in factories, such as boilers, steelmakers, kiln workers in ceramic factories, chefs in restaurants, long-term seated staff are more prone to reduced sperm density, reduced vitality, increased malformation, and even cause azoospermia. Electromagnetic radiation from computers and cell phones. Some experts conducted a member 13 months of research on 221 men, comparing the number of sperm of regular and infrequent users of cell phones. The results showed that those men who wore their cell phones on their belts or in their pants pockets faced certain dangers, and the sperm count of regular cell phone users decreased by nearly 30%, and the rest of the sperm would also show abnormal activity, further reducing fertility function. Some scholars have shown that male smokers who smoke 30 cigarettes a day have a sperm survival rate of 49%, while those who smoke 10 cigarettes a day have a sperm survival rate of 57%. The younger the age of smoking, the more men smoked, the lower the androgen production and the higher the sperm malformation rate. Also, smoking by the father seems to be associated with birth defects in the baby (such as hydrocephalus, ventricular valve defects, urethral stenosis, cleft lip, cleft palate, etc.). In addition, smoking can cause sexual dysfunction in men such as impotence, premature ejaculation, and reduced libido. In alcoholic men, sexual dysfunction can occur before the development of liver disease, and the offspring of alcoholic men are also suspected to have “fetal alcohol syndrome”. In men, excessive alcohol consumption affects the maturity and strength of sperm, resulting in babies born with low IQ, poor physical ability or congenital disabilities, called “Saturday babies” in Western countries, which affects the healthy growth of offspring. The long-term sauna bath is extremely unfavorable to the growth of sperm, and is also the cause of excessive dead sperm, so young men who have not yet had children should be careful to take a sauna bath. The fact that jeans and tight pants are not conducive to testicular heat dissipation, so it affects the sperm production function of the testicles. In summary, environmental pollution caused by various reasons is the most important cause of male infertility, followed by an unhealthy lifestyle, which must attract the attention of the whole society and every person.