Lock body driving device and door lock

The invention provides a lock body driving device and a door lock, and belongs to the technical field of locks. The lock body driving device comprises a driving motor, a transmission mechanism and a square steel component. The driving motor is in transmission connection with the power input end of the transmission mechanism, the square steel component is in transmission connection with the power output end of the transmission mechanism, one end of the square steel component is used for stretching into a square steel hole of a lock body, and the other end of the square steel component is used for being connected with a handle. And the driving motor is configured to drive the square steel part to rotate through the transmission mechanism. The lock body driving device provided by the invention is provided with the square steel component, one end of the square steel component extends into the square steel hole of the lock body, and in the current design, the lock body can be driven to unlock by rotating the squar