The invention discloses a traditional Chinese medicine liquid for treating trachoma and a preparation method thereof, and belongs to the field of a traditional Chinese medicine. The effective components of the traditional Chinese medicine liquid are prepared from the following raw materials: lichen of parmelia saxitilis, nomame senna herb, sunglow, lotus root, medlar, burdock, cordyceps sobolifera, borneol, radix ilicis asprellae, dichrocephala auriculata, apium graveolens, orchis, crab grass, fructus viticis, jasmine and henon bamboo sheath. The traditional Chinese medicine liquid is appropriate in compatibility of selected medicinal materials, accords with the theories of the traditional Chinese medicine and pharmacy and the modern medicine and pharmacology, has the effects of clearing away heat and toxic materials, enriching blood and brightening eyes, and dispelling wind and heat, has significant curative effects on the symptoms such as trachoma, dry eyes, pain and the like, is low in price, convenient to use, safe and reliable, free of toxic and side effects, effective and practical, and does not affect study, work and life after being used, not only can effectively relive dry eyes and mild discomfort, but also can play the roles of moistening and improving eyesight, and is worthy of extensive popularization and application.