Stirring device of bioreactor

The embodiment of the invention provides a stirring device of a bioreactor, the bioreactor comprises a tank body used for containing a mixture of cells and liquid, the stirring device comprises a rotating shaft, a magnetic part and a connecting device, the bottom of the rotating shaft is connected with the magnetic part, the magnetic part is used for realizing non-contact driving, and the connecting device is used for connecting the rotating shaft with the magnetic part. The rotating shaft is driven to rotate; the rotating shaft is not in contact with the bottom of the tank body; and the rotating shaft is connected with the top of the tank body through the connecting device. 本说明书实施例提供一种生物反应器的搅拌装置，所述生物反应器包括用于容纳细胞和液体的混合物的罐体，所述搅拌装置包括转轴、磁力件和连接装置，所述转轴底部连接所述磁力件，所述磁力件用于实现无接触驱动，以带动所述转轴转动；所述转轴与所述罐体的底部无接触；所述转轴通过所述连接装置与所述罐体的顶部连接。