The invention discloses a traditional Chinese medicinal preparation for treating infantile hydrocele of tunica vaginalis. The disease in infantile is usually caused by congenital deficiency of kidney qi, or kidney yang deficiency causing failure of water transpiration gasification, or spleen yang deficiency cold causing failure of transport of water-dampness by spleen and water-dampness retention, resulting in dysfunction of secretion and absorption of local water, easy going down and stagnation of water liquid in testis, and formation of edema of scrotum. To cure infantile hydrocele of tunica vaginalis, it is important to warm yang, promote diuresis, move qi, eliminate indigestion, relieve swelling and dissipate binds. The invention selects traditional Chinese medicines of gold stargrass herb, fennel root, bodinier cinnamon fruit, red-knees fruit, fiveleaf akebia fruit, hance rosewood stem or root, dyetree fruit, paniculigera starwort herb, Indian glorybower herb, goldwool clematis stem, wild banks rose root-bark and cortex cereis, which are decocted with water into a decoction. Through clinical tests, the preparation is proved to have total effective rate of 92.95%, and have good curative effect and no side effect.