The invention provides a traditional Chinese medicine preparation for treating nephrotic syndrome. The traditional Chinese medicine preparation is prepared from dandelion, sculellaria barbata, nightshade, akebiaquinata, daphne genkwa, eucommia ulmoides, pyrrosia lingua, abutilon fiber, rhizoma alismatis, polyporus umbellatus, paeonia lactiflora, verbena, rheum officinale, leonurus, radix cyathulae, lygodium japonicum, sticktight, rust-coloured crotalaria herb with root and cottonrose hibiscus root. The traditional Chinese medicine has the effects of clearing away heat and toxic materials, promoting blood circulation to remove blood stasis and inducing diuresis to reduce The traditional Chinese medicine composition can be used for treating chronic nephritis, pyelonephritis, nephrotic syndrome and other diseases, and is good in treatment effect and free of large side effects. The raw material medicines in the traditional Chinese medicine preparation have the effects of reducing blood fat, inducing diuresis, inhibiting thrombosis, resisting inflammation, enhancing human immunity, resisting anoxia and the like, and have the effect of treating the three-high and one-low symptoms of the nephrotic syndrome, and the eucommia ulmoides can reduce proteinuria, promote the adrenal cortex function, improve the hormone level in the body, improve glomerular blood flow and the like. The traditional Chinese medicine also has the effect of assisting reduction of renal hypertension.