Disclosed are a main control board for an electronic lock, and a control circuit (200), system and method for an electronic lock. The control circuit (200) of the electronic lock comprises: a communication circuit (20);a processor (10) which is connected to the communication circuit (20) and used for communicating with a server (100) via the communication circuit (20); and a driving circuit (30) which is connected to the processor (10) and connected to an electronic lock body provided in the electronic lock and used for receiving a control instruction sent by the server (100) via the processor (10) so as to drive the electronic lock body to act. The problem in the prior art that an electronic lock cannot be controlled remotely is solved, thereby achieving the effect of remotely controlling the switch state of the electronic lock.
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