The invention relates to a double-stirring device. The double-stirring device comprises an upper speed reducer, a lower speed reducer, an upper motor, a lower motor, a shell, an outer stirring shaft, an upper internal stirring shaft, a frame type stirrer, an inner stirrer and a transition shaft, wherein a lower auxiliary plate is installed in the middle of the lower end of the frame type stirrer, a shaft sleeve is installed in the middle of the lower auxiliary plate, a transition shaft is installed inside the shaft sleeve, the upper end of the transition shaft is installed inside a cylinder hole in the lower end of the inner stirring shaft, the two sides of the lower end of the outer stirring shaft are connected with two upper auxiliary plates which are obliquely installed at the two sides of the outer stirring shaft in a splayed shape and are connected to the middle of the upper end of the frame type stirrer by bolts and screw nuts. The double-stirring device has the advantages that the design is simple, the use is convenient, the structure is reasonable and compact, a sanitation type stirring device comprises a paddle type stirrer and the frame type stirrer, so that the stirring operation requirements of different viscosities of materials can be met.