The invention discloses an angelica keiskei compound teabag and a preparation method thereof. The teabag is composed, by weight, of 28-32 parts of angelica keiskei, 12-16 parts of hippophae rhamnosides leaves, 3-5 parts of perilla leaves, 14-18 parts of white orchid, 6-8 parts of loquat flower and 17-21 parts of walnut flower. The preparation method includes the steps of cleaning all raw materials, removing impurities, performing ultralow temperature cryogenic grinding and vacuum freeze drying, mixing according to the formula ratio, and performing ultra-high pressure sterilization and sealed packaging to obtain a finished product. The angelica keiskei compound teabag prepared through the preparation method greatly maintains nutritional values and functional components of angelica keiskei and other plant materials, has health effects of immunity enhancing, blood pressure reducing, fat removing, heat clearing, detoxification, lung moistening to arrest cough and the like, and is clear in tea soup, heavy in tea aroma, mellow in flavor and harmonious in taste after brewing. The raw materials of the teabag are natural, non-toxic, wide in sources and low in costs. The teabag is easy to product, high in quality, easy to brew and suitable for daily drinking.