The specific changes caused by long-term consumption of black tea by women are usually related to the amount of drinking, if women drink a small amount of black tea for a long time may have certain benefits, but if the long-term excessive consumption of black tea, but will bring adverse effects. Black tea is a kind of fermented tea, which contains caffeine, black tea polyphenols and rich potassium, vitamins and other substances, can refresh the fatigue, promote digestion. Therefore, if women drink black tea properly for a long time, to promote the gastrointestinal tract peristalsis, blood circulation, increase appetite, diuretic swelling and other aspects have a certain auxiliary improvement effect. However, if consumed in excess, because black tea contains caffeine and a variety of theophylline, so it is easier to sleep quality, insomnia, lack of concentration and other symptoms, in addition to abdominal pain, diarrhea and other gastrointestinal changes, as well as palpitations, panic, urinary frequency and other systemic symptoms. In addition, in menstruation, pregnancy, lactation and menopause women are not suitable for drinking, so as not to black tea in the tannic acid, caffeine and other substances affect the body’s absorption of iron, easily triggered by iron deficiency anemia and other symptoms. The rest of the population in drinking black tea should be careful to avoid drinking too strong and too cold black tea, moderate amounts can be, so as not to increase the burden on the gastrointestinal tract.