The invention relates to a traditional Chinese medicine preparation for treatment for heat stress of dairy cows in summer, which is characterized in that the traditional Chinese medicine preparation is prepared by mixing Chinese herbal medicines with the following parts by weight: 48 to 72 parts of Chinese mosla herb, 36 to 54 parts of baical skullcap root, 24 to 36 parts of cape jasmine fruit, 24 to 36 parts of weeping forsythiae capsule, 20 to 30 parts of Chinese thorowax root, 24 to 36 parts of Chinese angelica, 48 to 72 parts of Mongolian snakegourd root, 12 to 18 parts of liquoric root and 48 to 72 parts of honey. The preferential mix ratio of all the components is as follows: 60 parts of Chinese mosla herb, 45 parts of baical skullcap root, 30 parts of cape jasmine fruit, 30 parts of weeping forsythiae capsule, 25 parts of Chinese thorowax root, 30 parts of Chinese angelica, 60 parts of Mongolian snakegourd root, 15 parts of liquoric root and 60 parts of honey. The preparation method is as follows: all the components are smashed into ultra-fine powder, the powder is evenly mixed according to a proportion, or the heating extraction is carried out to prepare oral liquor, medical drinking tablets are weighed according to the proportion, 5 to 10 times of water is added for soaking for 20 to 40 minutes and carrying out the decoction for 50 to 80 minutes, the mixture is concentrated to that each milliliter contains 0.5 to 1g of the raw medicine after the filtration, thus preparing the traditional Chinese medicine preparation. The traditional Chinese medicine preparation has reasonable formula, simple preparation, broad material selection, low cost and significant efficacy.