The invention discloses a Chinese medicament preparation for treating cataract and a preparation method thereof, belonging to the field of Chinese medicaments. The effective components of the Chinese medicament preparation disclosed by the invention comprise raw materials including chamomile, picrorhizae, gentianopsis, sturnus roseus, pagodatree flower bud, white amaranth, vermiculite, ricepaperplant pith, myrtle fruit, coffee senna seed, umbilicaria, sensitive joint vetch root, feather cockscomb seed, bitter gourd, scouring rush and pricklyash peel. The Chinese medicament preparation disclosed by the invention selects medicinal materials with appropriate compatibility, accords with the theories of the traditional Chinese medicine and pharmacy and the modern medicine and pharmacology, has the effects of clearing liver and improving eyesight, sterilizing and disinfecting and removing nebula for improving eyesight, has significant curative effects on treating symptoms such as swelling and pain of eyes, epiphora induced by wind, nebula film covering eye, orbit blepharitis and the like caused by cataract, is convenient in dosing, safe and reliable and free of toxic or side effects, can realize the aim of resolving the current problems and eliminating the root causes, and reaches up to a total effective rate of 98.2%.