Traditional chinese medicine preparation for treating urinary system infection contamination and method of preparing the same

The invention provides a Chinese medicine and a preparation method for treating urinary tract infection. The invention takes pig mane grass and lychee grass as the pharmaceutical raw materials, or matched with part or all of a plantain, sarissa herb and Chinese corktree. Compared with the prior technology, the Chinese medicine provided by the invention has the effect of clearing heat and promoting diuresis, inducing diuresis for treating stranguria. The invention not only has good curative effect for urinary tract infection caused by accumulated damp-heat, but also prevents repeated outbreakswithout producing significant side effects and drug resistance, which is a safe, effective, quality controllable new Chinese medicine, and worth clinical application and promotion.