The present invention relates to a method and an apparatus for evaporating and extracting a fluid component from a plant and an extract obtained by the same. According to the present invention, phytochemical degeneration is prevented by evaporation extraction at a low temperature lower than in the case of hot water extraction or distillation extraction, extraction of an aroma component and moisture contained in the plant itself including volatile matter of the plant can be performed as well as a result of the evaporation extraction, extraction of high-purity essential oil can be performed even without an additional essential oil process because no external liquid is mixed as a solvent, and the extraction can be performed without any change in component or destruction of and decrease in various minerals and an electrolyte component contained in the plant moisture because an evaporation chamber is filled with inert gas during the evaporation extraction process. The method includes: a cleaning and dehydration step in which a contaminant and bacteria are removed from a plant to be processed selected for the evaporation extraction for phytochemical extraction from the plant to be processed； a preparation step in which fine cutting or crushing is performed for a size facilitating the extraction and then spreading at a small thickness in an evaporation box is performed； a sealing step in which the evaporation box in which the plant to be processed has been spread is put into a shelf of the evaporation extraction apparatus and loaded in multiple stages after the preparation and the evaporation chamber is blocked from outside air； a vacuum creation step in which oxygen concentration in the apparatus is lowered by air in the sealed evaporation extraction apparatus being forced to be discharged by a vacuum pump； an evaporation hot air supply step in which hot air is diffused and supplied from an electric heater and a circulation fan to the plant to be processed on the shelf in
