Abstract: Disclosed in the present invention is a continuous stirrer, which comprises a receiving chamber provided with a front material inlet, a back material inlet and multilayer outer stirring needle groups along axial direction and a stirring shaft installed in the receiving chamber in a sealing manner and provided with multiple inner stirring needle groups along axial direction. The outer stirring needle groups and the inner stirring needle groups are staggered along axial direction, wherein inner stirring needles constituting the inner stirring needle groups and outer stirring needles constituting the outer stirring needle groups are arc or curve.