The present invention relates to a high shear mixing device comprising, a first screw kneader and a second screw kneader; a first rotation driving mechanism for rotating the first screw kneader and a second rotation driving mechanism for rotating the second screw kneader; a revolution driving mechanism in which the first rotation driving mechanism and the second rotation driving mechanism are rotatably installed; a driving mechanism body in which the revolution driving mechanism is installed; and a mixing tank, wherein each of the first screw kneader and the second screw kneader comprises a shaft whose one end is connected to the rotation driving mechanism; and three or more blades having one end fixed to the shaft and having a helically curved body along the longitudinal direction of the shaft, and wherein each of the screw kneaders rotates in opposite directions with the other screw kneaders and blades overlapping each other.