The invention aims to provide an ebanol preparation method having the advantages of industrialized production realization, simple operation and strong reliability. The method comprises the following steps: 1, condensing methyl ethyl ketone and trimethyl cyclopentenyl acetaldehyde at a low temperature, carrying out rectification, removing methyl ethyl ketone and methanol, cooling a residual liquid, rectifying the obtained separated organic phase to obtain an intermediate 1, adding the intermediate 1 to a -5-0DEG C dimethyl formamide solution of sodium methoxide, rearranging to obtain an intermediate 2, adding the obtained methanol solution of the intermediate 2 to a methanol solution of sodium borohydride for a reaction, carrying out hydrogenation reduction, and rectifying the obtained organic phase to obtain ebanol, wherein a mole ratio of the added trimethyl cyclopentenyl acetaldehyde to methyl ethyl ketone contained in a first solution is less than 1.