Provided is a method for preparing a cyclohexane derivative, the method comprising the following steps : subjecting a compound, 2-(4-(3, 3-dimethylureido)cyclohexyl)acetaldehyde, represented by formula SM01 and a compound represented by formula SM02 to a condensation imine reduction reaction to obtain the cyclohexane derivative. The method of the present invention has few side reactions, a high product yield and a high product purity, and is favorable for the industrial scale production.