An information conveying method is implemented by an information conveying system coupled to a first electronic device associated with a service provider and a second electronic device associated with a user. The system is programmed tor receive a reference image; create a data packet based, on to-be-conveyed information associated with the service provider, and link the data packet to the reference image; upon receiving a captured image from the second electronic device, generate a characteristic code of the captured image; determine whether the captured image matches the reference image; and when the determination made is affirmative, transmit the data packet to the second electronic device.