The invention discloses a system and technology for rapid extraction of refined and pure ethyl acetate after pressurized esterification synthesis. The system consists of a reactive rectification tower, a refining tower, a deacidification tower and a recovery tower, wherein the middle of the reactive rectification tower is connected to an acetic acid source and an ethanol source, the top of the reactive rectification tower is connected to the inlet of a first collection tank through a cooler, the first collection tank is also connected to a first stratification apparatus, and the top of the first stratification apparatus is communicated with the top of the reactive rectification tower and the middle of the refining tower respectively. The first stratification apparatus is communicated witha desalted water storage device, and desalted water can be supplemented into the first stratification apparatus. By supplementing desalted water into the first stratification apparatus, the substancecan serve as an extract for extraction of light components, reaction by-products and other impurities in crude ester, and also can accelerate the displacement of acetic acid in the crude ester and improve the qualified speed of products at the initial start-up stage of an ethyl acetate plant.