The invention aims to provide a cultivation method for nano-selenium containing Tie Guanying organic tea plant and the nano-selenium containing Tie Guanying organic tea plant. One hundred grams of organic tea leaves obtained through the cultivation method contains 40 to 65 micrograms of nano-selenium with a granular diameter of 50 to 200 nanometers, 4.36 to 5.45 grams of ether extracts and the balance dietary fibers, carbohydrates, proteins, microelements such asmanganese, magnesium, phosphorus, zinc, iron, copper, sodium, calcium and potassium, and vitamins including A, A1, B1, B2, B5, E and renieratene. The organic tea leaves meet standards of Green Organic Tea Certification and requirements and standards of organic tea production, processing and trade. Selenium has functions of free radical removal, prevention of cancers, beauty treatment and aging resistance, weight reduction, radiation resistance, adjustment of immunity, treatment of Keshan disease, etc., and nutritional anticancer agent accepted by medical community. The organic tea leaves, after long term drinking, have better prevention and cure effect on hepatitis, arthritis, cataract, angiocardiopathy and hemorrhagic fever and other diseases and is benefit to health and longevity of the middle-aged and old.