The invention discloses beauty-maintaining weight-losing health tea and a preparation method thereof. The beauty-maintaining weight-losing health tea is prepared from the following raw materials in parts by weight: 30-40 parts of bitter gourd, 11-19 parts of mulberry leaves, 8-17 parts of lotus seed, 10-15 parts of folium ginkgo leaves, 15-20 parts of white chrysanthemum flowers, 10-20 parts of rock candy, 5-13 parts of akebia trifoliate flowers, 4-9 parts of cinnamon, 2-7 parts of okra, 10-20 parts of tomato juice, 10-20 parts of apple juice, 7-14 parts of endothelium corneum gigeriae galli, 25-35 parts of green tea, 3-8 parts of perilla leaves, 5-10 parts of aloe peels, 7-13 parts of citric acid, 7-18 parts of konjac glucomannan, 5-10 parts of nutrition powder and a proper amount of water. The skin-beautifying weight-losing health tea has functions of maintaining beauty, losing weight, removing fat, eliminating summer-heat by cooling, subsiding swelling, detoxicating, protecting liver, enhancing the human tolerance, removing food retention and stagnation, strengthening spleen and stomach, relieving cold and fever, and the like; the bitter gourd which is mainly used as a main material is mixed with different nutritional ingredients of the mulberry leaves, the lotus seed, the folium ginkgo leaves, the white chrysanthemum flowers and the akebia trifoliate flowers, so that effects are increased.