The invention provides a Candida boidinii, of which the collection number is CGMCC 9446 and the complete name is Candida boidinii T1. The invention also provides application of the Candida boidinii T1 in catalytic synthesis of an atorvastatin intermediate, which is specifically implemented by catalytic synthesizing tert-butyl 6-cyano-(3R,5R)-dihydroxyhexanoate from the substrate tert-butyl 6-cyano-(5R)-hydroxy-3-carbonylhexanoate. The Candida boidinii can express high-stereoselectivity carbonyl reductase; and the conversion rate of the tert-butyl 6-cyano-(5R)-hydroxy-3-carbonylhexanoate is up to 99%, and the d.e. value of the product tert-butyl 6-cyano-(3R,5R)-dihydroxyhexanoate is up to 100%.