The invention discloses a reaction device for essence synthesis, relates to the field of essence synthesis, and solves the problem that the purification concentration of essence is affected due to the fact that an existing reaction device easily causes water drops to drop, the reaction device comprises a device shell and a reaction tank arranged on the inner side of the device shell, a feeding
pipe extending into the reaction tank is fixedly installed on the outer side of the device shell, a top cover is fixedly installed at the top of the device shell, a motor is fixedly installed at the top of the top cover, and the output end of the motor is fixedly connected with a stirring rod extending into the reaction tank; a heating cylinder is fixedly mounted between the device shell and the reaction tank; the condensation mechanism is used for guiding and discharging
water vapor rising in the reaction tank, and the condensation mechanism is mounted at the bottom of the top cover; through the condensation mechanism,
water vapor stays at the bottom of the top cover and slides between the device shell and the reaction tank, so that the effect of improving the essence purification quality is achieved.