A pharmaceutical composition. The pharmaceutical composition is prepared from the following raw materials in parts by weight: 8.75-60 parts of silybin, 15-65 parts of phospholipid, 25-200 parts of a Pu'er tea extract, 6.25-40 parts of vitamin E, and 8.3-60 parts of L-carnitine. The composition can be used for treating non-alcoholic fatty liver diseases.