The utility model discloses a stirring device for a reaction kettle. The reaction kettle comprises a reaction kettle shell, wherein a pair of strip-shaped grooves are formed in the upper surface of the reaction kettle shell; a first micro rotating motor with a downward rotating end is embedded in each strip-shaped groove; a rotating disc is fixedly connected to the rotating end of each first microrotating motor; the lower surface of the rotating disc is fixedly connected with a plurality of second micro rotating motors with downward rotating ends; a rotating end of each second micro rotatingmotor is fixedly connected with a rotating circular shaft, each rotating circular shaft is sleeved with a stirring blade, rectangular grooves are machined in the lower edges of the two side faces in the reaction kettle shell, a supporting rod is embedded in each rectangular groove, and each supporting rod is fixedly connected with an uncovered reaction barrel. The reaction kettle has the beneficial effects that the structure is simple, the operation is convenient, the stirring can be reasonably controlled, the stirring is uniform, the reaction efficiency is effectively improved, the movement is convenient, and the movement effect is good.