Device and method for extracting and enriching volatile components from sample

The invention discloses a device for extracting and enriching volatile components from a sample. The device mainly comprises a reaction unit, a separation unit and a power unit which are connected with one another, wherein the reaction unit comprises a constant-temperature reaction tank and a super constant-temperature system thereof; the separation unit comprises a cold trap and a heat preservation system thereof; the power unit comprises an oil forestage pump and a secondary pump. Accordingly, a corresponding use method and a method for analyzing the aroma components of the food are furtherestablished, the flavor substances are separated at low temperature through the diffusion and transfer phenomenon of the flavor substances in high vacuum, and the problems of compound decomposition and new compound generation caused by too high extraction temperature are greatly reduced; flavor substances with different boiling points can be obtained by adjusting the vacuum degree of the vacuum system and the extraction t