The invention discloses a honeysuckle and roxburgh rose compounded instant green tea powder and a preparation method thereof. The preparation method comprises the following steps: regarding green tea dust, honeysuckle and roxburgh rose juice as main raw materials, extracting the green tea dust and the honeysuckle for three times respectively to obtain corresponding extract liquids, selecting fresh roxburgh rose to be squeezed to form juice, mixing the juice with the extract liquids, then conducting vacuum concentration to the mixture to obtain a mixed and concentrated solution, adding maltitol which is 3-4% of the total volume to the solution to be blended, when the concentration of the mixed solution is up to 30-40%, and conducting spray drying to obtain the honeysuckle and roxburgh rose compounded instant green tea powder. The honeysuckle and roxburgh rose compounded instant green tea powder disclosed by the invention is simple to process, and free of any artificially synthesized additive and preservative, and can fully utilize the advantage that the nutritional ingredients in the raw materials are complementary; the prepared instant green tea powder can be filled with water to be dissolved quickly, is pure in flavor, mellow, fresh, and unique in taste, has the effects of clearing away heat and toxic materials, refreshing, restoring consciousness, invigorating stomach to help digestion, and resisting against ageing and fatigue, is suitable for consumer groups at all ages, and can achieve high economic benefits.