The invention discloses rosuvastatin intermediates and preparation methods thereof, and belongs to the technical field of organic synthesis of medicines. The invention discloses the novel rosuvastatin intermediates comprising a compound II, a compound III, a compound IV and a compound V, also discloses the preparation methods for the rosuvastatin intermediates compound II, compound III, compound IV and compound V, and a method of utilizing the compounds to prepare 4-(4-fluorophenyl)-6-isopropyl-2-[(N-methyl-N-methylsulfonyl)amino]pyrimidinyl-5-yl-formyl. The beneficial effects comprise that (1) the reaction steps are short and the method long comprises five steps; (2) the overall yield is high to 54.7% and the cost is relatively low; and (3) the reaction conditions are mild, no high-temperature reaction and no cryogenic reaction are related, the raw material source is extremely convenient, no high-toxicity substances are relates, and the method is suitable for industrialized production.