Preparation process of rose essence base suitable for blending wine

The invention discloses a preparation process of a rose essence base suitable for blending wine. The preparation process comprises the following steps: selecting rose seeds, preparing an extracting agent, circularly extracting, carrying out solid-liquid separation and carrying out reduced pressure distillation; two dry roses with double petals are selected to be matched for use so that the aroma harmony is good; by adopting low-temperature countercurrent extraction, the rose fragrance is purer, and the boiled taste after heating and the rotten sweet potato taste are avoided; the essence base is extracted by adopting low-temperature distillation so that the damage of high temperature to the fragrance of the roses is reduced, the collection of low-boiling-point fragrance is increased, the overall fragrance of the roses is retained to the maximum extent, and the bitter taste in the extracting solution is removed; the finally extracted rose essence base is colorless and good in clarity, and the blended wine is no