The invention relates to a reaction device which comprises a vertical drum, a stirring device, a feeding device and a material injecting device, wherein an upper sealing head and a lower sealing head are respectively arranged at the two ends of the vertical drum; the stirring device comprises a supporting base, a driving motor, a power output shaft and a stirring paddle; the feeding device comprises a leaking tube, a conveying tube, a feeding pump, a feeding tube and a plurality of feeding components; the material injecting device comprises a sealing plate, a first injecting tube and a second injecting tube. The efficient reaction device is provided with the vertical drum, the stirring device and the feeding device, the feeding moment is controlled and the materials are fed into the feeding components of the feeding device, so that the effect of continuous feeding operation is realized; the feeding operation is simple and convenient; the feeding efficiency is higher.