The invention discloses a stirring device. The stirring device comprises a stirring barrel for bearing materials, a stirring shaft arranged on the upper portion of the stirring barrel, stirring paddles connected to the stirring shaft, a rotating motor connected to the stirring shaft and a telescopic rod fixed to the rotating motor. The stirring paddles of the stirring device can be rotated and moved vertically, so that density uniformity of all positions in the stirring barrel is ensured, stable operation of the stirring machine is ensured, and stirring quality is improved.