Vacuum pump

The invention provides a vacuum pump which comprises a shell, a rotor comprising a rotor shaft and rotor blades, a stator and a motor used for driving the rotor, and further comprises a lower labyrinth disc, and the lower labyrinth disc is arranged to be matched with the rotor blades close to the motor and used for sealing and separating a motor working cavity and a blade working cavity. The lower labyrinth disc comprises a first labyrinth structure, the first labyrinth structure comprises a plurality of labyrinth teeth, the rotor blade close to the motor comprises a second labyrinth structure, the second labyrinth structure comprises a plurality of labyrinth teeth, and the first labyrinth structure and the second labyrinth structure are oppositely arranged and matched with each other to achieve sealing. According to the vacuum pump provided by the invention, the risk that a lubricant enters a high-vacuum area after volatilization is greatly reduced through labyrinth sealing. 本发明提供一种真空泵，包括：壳体、包括转子轴和转子叶片的转子、静子