Background: Green tea is a popular type of tea that is made of unfermented tea leaves. Green tea has been used for thousands of years by people in Eastern coun tries for a variety of health reasons. One of the primary benefits of Green Tea in regard to fertility is not in what it contains, but rather in what it does not contain.Materials and Methods: In the present study attempts to investigate the latest articles about green tea effects on fertility was discussed.Results: Fertility differs from fecundity, which is defined as the potential for reproduction (influenced by gamete production, fertilisation and carrying a pregnancy to term). A lack of fecundity would be called sterility.Human fertility depends on factors of nutrition, sexual behavior, culture, instinct, endocrinology, timing, economics, way of life, and emotions. research shown that green tea can be effect on fertility. because green tea has a much smaller amount of caffeine than regular tea, or even coffee. Caffeine has been shown, in some cases, to negatively impact fertility. So, drinking green tea is a viable alternative to coffee and some other teas. Some research suggests that two of the main ingredients in green tea, hypoxanthine and polyphenols, may lead to a higher percentage of viable embryos. Other research has suggested that these compounds help increase the maturing of eggs, and may even make the eggs more fertile.In addition, polyphenols serve as antioxidants, which help protect your body from various diseases and other conditions. Drinking green tea may even help not only with female fertility, but with male fertility problems as well.Some green tea advocates suggest that green tea may help with low sperm count, and even with sperm motility.Conclusion: It is hoped with good food and the use of green tea could be tried in order to reduce infertility.