The invention discloses a preparation process of a standard herba houttuyniae decoction, and relates to the technical field of
traditional Chinese medicine decoction preparation, and the preparation process comprises the following steps: weighing a proper amount of herba houttuyniae decoction pieces, placing in a marmite, decocting twice, adding 12 times of water for the first time, soaking for 30 minutes, boiling with strong fire, and decocting with
slow fire for 30 minutes; adding 10 times of water for the second time, boiling with strong fire, then decocting with
slow fire for 20 minutes, filtering the liquid
medicine with 200 meshes, rapidly cooling the filtrate to
room temperature in a water bath, mixing the two filtrates, carrying out vacuum concentration at the temperature of 50 DEG C until the weight ratio of the medicinal material to the
fluid extract is about 1: 1, collecting the concentrated solution, and freeze-
drying to obtain a sample. According to the invention, key quality indexes such as the main content, the characteristic spectrum and the extract of the herba houttuyniae after the decoction is prepared are stipulated, the transfer rate is investigated, and meanwhile, the transfer rate range of the main content of the herba houttuyniae is stipulated, so that the effectiveness of the herba houttuyniae decoction is kept according to a standard preparation method.