The present invention relates to the technical field of flower tea processing and discloses a preparation technology of antioxidant peony flower tea. The preparation technology of the antioxidant peony flower tea comprises the following steps: Chinese herbal medicines of ginkgo leaves grape seeds, lucid ganoderma, acanthopanax root, rhodiola rosea, Chinese wolfberry fruits, haws, rhizoma polygonati, radix pueraiae and licorice are mixed evenly, then water is added for boiling and extracting for three times, three filtrates are combined, and concentration is conducted to obtain a concentrated Chinese herbal medicine solution; fresh green tea tender bud picking, rinsing clean with water and air-drying are conducted for a standby application; fresh peony petal picking, rinsing clean with water and air-drying are conducted for a standby application; the air-dried green tea tender buds and peony flowers are mixed evenly and enzyme-deactivating is conducted to obtain an enzyme-deactivation treated material; the concentrated Chinese herbal medicine solution and enzyme-deactivation treated material are mixed evenly and stack fermentation is conducted to obtain a fermented material; and thefermented material drying to constant weight, fragrance improving and bagging are conducted to obtain the antioxidant peony flower tea. The prepared antioxidant peony flower tea is pure in mouthfeeland mellow in tea fragrance, and also has anti-oxidation and anti-aging functions.