The invention discloses an account binding method and device, relating to the technical field of data processing and aiming to bind an account with an encryption device without an administrator. The method comprises the steps of: receiving an account binding request; generating a binding request data packet according to the account identification information and the identification information of the encryption device and sending the binding request data packet; and determining that the account is bound with the encryption device when binding request data packet processing success response information is received. The method and the device are suitable for binding the account with the encryption device.