The invention discloses zhuangfei strawberry essence and a preparation method thereof; the strawberry essence usually comprises faint aroma, sweet aroma, acid aroma, fruit aroma, flower aroma, and characteristic aroma, and the mass fractions of the components are 6-8 parts of faint aroma, 12-15 parts of sweet aroma, 15-25 parts of acid aroma, 40-45 parts of fruit aroma, 3-5 parts of flower aroma,and 5-8 parts of characteristic aroma. The method comprises the following steps: removing pedicles of fresh zhuangfei strawberries, washing, refrigerating and cooling the strawberries, triturating the strawberries by a triturator to obtain pasty strawberries; detecting the aroma components in ripe zhuangfei strawberry fruit by a solid-phase microextraction-gas chromatography / mass spectrum-automatic mass spectrum deconvolution identification system, and determining an optimal formula composition with reference to quantitative data of GC-MS. The zhuangfei strawberry essence obtained by the invention has good natural sense and native sense, and has better application effect in dairy and cold drink than other strawberry essence.