The invention discloses a 
medicine composition for treating infantile 
precocious puberty and a preparation method thereof. The 
medicine composition is prepared from the following medicinal raw materials: radix rehmanniae recen, rhizoma alismatis, cortex lycii radicis, moutan 
bark, felwort, selfheal, malt, 
turtle shell, chrysanthemum, 
kelp, radix scrophulariae, 
endothelium corneum gigeriae galli and 
oyster. The preparation method comprises the following steps: S1, decocting malt for 2-5 times, mixing the decoctions, filtering; adding 
alcohol which has equal amount as the filtrate into the filtrate, stirring the 
mixed solution, and standing overnight; reclaiming 
alcohol from the supernate until no 
alcohol smell exists; S2, 
grinding turtle shell and 
oyster into 
powder, filling cloth bags with the 
powder, and decocting together with other medicinal materials with water for 2-5 times, mixing the decoctions, filtering, and standing the filtrate overnight; and S3, taking the supernate of the filtrate in the S2, adding the supernate into the S1, filtering, and performing post 
processing to obtain the medicinal composition. The 
medicine composition has the effects of clearing liver, eliminating stagnation, nourishing yin and purging internal fire, can be used for treating infantile breast distending pain and 
vaginal bleeding, and has the effect of treating infantile 
precocious puberty.