Preparation method for aired tobacco extracts and essential oil

The invention discloses a preparation method for aired tobacco extracts and essential oil. The preparation method includes extracting aroma components such as ester, wax compounds and the like in aired tobaccos by the aid of carbon dioxide supercritical fluid; adopting water as eluent to dynamically wash supercritical fluid extracts in a primary separating kettle so as to extract water soluble components; eluting the supercritical fluid extracts via ethanol in a secondary separating kettle to obtain alcohol soluble aired tobacco essential oil; and utilizing alcohol insoluble substances as cigarette aroma additives by an emulsion dispersion method. The preparation method can remarkably increase aired tobacco aroma component extracting efficiency and selectivity, aired tobacco aromatic characteristics of the extracts are remarkable, offensive and irritancy can be reduced, and sensory comfort can be improved.