An initialization method for a smart device, comprising: obtaining by a target device target characters by encoding source data of initialization data for the smart device; playing an initialization audio signal by the target device, wherein the initialization audio signal is an audio signal of the target characters obtained; receiving by the smart device the initialization audio signal; decoding by the smart device the initialization audio signal according to pre-stored correspondences between pre-set characters and source data of the pre-set characters so as to obtain the source data of the initialization data, wherein the pre-set characters at least include the target characters, and a number of the pre-set characters is larger than a number of the target characters; and initializing the smart device according to the source data of the initialization data, wherein the smart device is controlled to be networked according to the source data of the initialization data; wherein said decoding the initialization audio signal according to the pre-stored correspondences between pre-set characters and source data of the pre-set characters so as to obtain the source data of the initialization data includes: recognizing the initialization audio signal to obtain the target characters; obtaining the source data of the initialization data according to the target characters as well as the correspondences between the pre-set characters and the source data of the pre-set characters, wherein said initializing the smart device according to the source data of the initialization data further includes: storing corresponding user information of the smart device according to the source data of the initialization data; and/or displaying available functional options according to the source data of the initialization data. obtaining by a target device target characters by encoding source data of initialization data for the smart device; playing an initialization audio signal by the target device, wherein the initialization audio signal is an audio signal of the target characters obtained; receiving by the smart device the initialization audio signal; decoding by the smart device the initialization audio signal according to pre-stored correspondences between pre-set characters and source data of the pre-set characters so as to obtain the source data of the initialization data, wherein the pre-set characters at least include the target characters, and a number of the pre-set characters is larger than a number of the target characters; and initializing the smart device according to the source data of the initialization data, wherein the smart device is controlled to be networked according to the source data of the initialization data; wherein said decoding the initialization audio signal according to the pre-stored correspondences between pre-set characters and source data of the pre-set characters so as to obtain the source data of the initialization data includes: recognizing the initialization audio signal to obtain the target characters; obtaining the source data of the initialization data according to the target characters as well as the correspondences between the pre-set characters and the source data of the pre-set characters, recognizing the initialization audio signal to obtain the target characters; obtaining the source data of the initialization data according to the target characters as well as the correspondences between the pre-set characters and the source data of the pre-set characters, wherein said initializing the smart device according to the source data of the initialization data further includes: storing corresponding user information of the smart device according to the source data of the initialization data; and/or displaying available functional options according to the source data of the initialization data. storing corresponding user information of the smart device according to the source data of the initialization data; and/or displaying available functional options according to the source data of the initialization data.