NOVELTY - An amorphous atorvastatin calcium preparation method involves reacting 7-(2-(4-fluoro-phenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl)-heptanoic acid tert-butyl ester with sodium hydroxide to obtain sodium salt of 7-(2-(4-fluoro-phenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl)-heptanoic acid tert-butyl ester (I). The sodium salt of 7-(2-(4-fluoro-phenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl)-heptanoic acid tert-butyl ester (I) is reacted with calcium acetate to obtain amorphous atorvastatin calcium (II).    USE - Method for preparing amorphous atorvastatin calcium.    ADVANTAGE - The method enables greatly shortening response cycle and preparation period for more than 30 hours. The method enables reducing production cost and environmental pollution and improving product quality. The method enables simplifying preparation process and industrial production of amorphous atorvastatin calcium at low raw material costs.    DETAILED DESCRIPTION - An amorphous atorvastatin calcium preparation method involves reacting 2-(2-(4-fluoro-phenyl)-2-oxo-1-phenyl-ethyl)-4-methyl-3-oxo-pentanoic acid phenylamide and (6-(2-amino-ethyl)-2,2-dimethyl-(1,3)dioxan-4-yl)-acetic acid tert-butyl ester to obtain (6-(2-(2-(4-fluoro-phenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl)-ethyl)-2,2-dimethyl-(1,3)dioxan-4-yl)-acetic acid tert-butyl ester. The (6-(2-(2-(4-fluoro-phenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl)-ethyl)-2,2-dimethyl-(1,3)dioxan-4-yl)-acetic acid tert-butyl ester is reacted with hydrochloric acid to obtain 7-(2-(4-fluoro-phenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl)-heptanoic acid tert-butyl ester. The 7-(2-(4-fluoro-phenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl)-heptanoic acid tert-butyl ester is reacted with sodium hydroxide to obtain sodium salt of 7-(2-(4-fluoro-phenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl)-heptanoic acid tert-butyl ester of formula (I). The sodium salt of 7-(2-(4-fluoro-phenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl)-heptanoic acid tert-butyl ester (I) is reacted with calcium acetate to obtain amorphous atorvastatin calcium of formula (II)..