The invention relates to an antibacterial gel for nursing private parts and a preparation method thereof. The gel is prepared from, by weight, 150 g of sophora flavescens, 50 g of safflower, 50 g of dandelion, 50 g of aloe, 50 g of fructus cnidii, 50 g of cortex phellodendri, 5 g of red scorpion, 1 g of borneol, 0.1 g of polyhexamethylene biguanidine hydrochloride, 50 ml of ethanol, 5 g of carbopol, 2 g of triethanolamine, 1 g of ethylparaben, 300 g of purified water and 0.1 g of sodium hyaluronate. The raw materials are subjected to decocting, dissolving, filtering, concentrating, diluting, PH value adjusting and other steps to obtain liquid medicine, the liquid medicine is subjected to inspection and filling, inspection is conducted again after filling, and the liquid medicine is packedand put into storage after successfully passing the inspection. By adopting the compatibility of traditional Chinese medicine, the gel is safe, has no side effects and accords with the therapeutic mechanism of traditional Chinese medicine, gynecological diseases are fundamentally treated, the extraction of pure Chinese medicine is achieved, the gel causes no side effects after used for a long timeand is safer than western medicine gel and free of irritation, and symptoms and causes are all dealt with through treatment with the traditional Chinese medicine.