An interactive device for an internet radio station, comprising a content presentation unit and a content selection unit, wherein the content selection unit comprises an operation module, a processing module electrically connected with the operation module, an indication module of a physical shape electrically connected with the processing module, and a communication module electrically connected with the processing module; wherein the operation module is configured to input, by a user, a channel selection instruction by means of manual rotation and generate a corresponding electrical signal; wherein the processing module is linked to a network radio station by the communication module, and configured to obtain, according to the electrical signal, a corresponding audio resource from the network radio station and release the corresponding audio resource to the content presentation unit; the content presentation unit is configured to play the audio resource; wherein the processing unit is further configured to drive the indication module to generate a state change corresponding to the electrical signal; the operation module comprises a rotary encoder and a knob physically connected with a rotary shaft of the rotary encoder through a contact module; wherein the rotary encoder is arranged inside with a channel selection circuit which is configured to generate the electrical signal corresponding to the channel selection instruction; when the knob is rotated by the user to input the channel selection instruction, the knob is configured to bring the rotary shaft of the rotary encoder to rotate through the contact module, such that the rotary encoder is configured to generate the electrical signal corresponding to the channel selection instruction; characterised in that the indication module comprises a pull wire, a pointer connected with the pull wire, a dial arranged along the pull wire and a light board corresponding to the dial; wherein the dial is provided with N identifiers which are corresponding with a plurality of different audio resources one by one, the light board is provided with an indication circuit electrically connected with the processing module, wherein the indication circuit comprises N light-emitting elements which are corresponding with the N identifiers one by one, wherein N refers to a natural number greater than zero; wherein the contact module comprises a pull wire wheel (81, 82), wherein the pull wire wheel (81,82) and the knob are winded by the pull wire, respectively; wherein when the knob is rotated by the user to input the channel selection instruction, the knob is configured to drive the pull wire to walk a certain track, so that the pull wire wheel (81,82) is configured to bring the rotary shaft of the rotary encoder to rotate correspondingly for generating the electrical signal corresponding to the channel selection instruction; the processing module is further configured to drive the light-emitting elements to be switched on according to the electrical signal, and the pointer is configured to move along the dial with the pull wire and align with a corresponding light-emitting element which is switched on. characterised in that the indication module comprises a pull wire, a pointer connected with the pull wire, a dial arranged along the pull wire and a light board corresponding to the dial; wherein the dial is provided with N identifiers which are corresponding with a plurality of different audio resources one by one, the light board is provided with an indication circuit electrically connected with the processing module, wherein the indication circuit comprises N light-emitting elements which are corresponding with the N identifiers one by one, wherein N refers to a natural number greater than zero; wherein the contact module comprises a pull wire wheel (81, 82), wherein the pull wire wheel (81,82) and the knob are winded by the pull wire, respectively; wherein when the knob is rotated by the user to input the channel selection instruction, the knob is configured to drive the pull wire to walk a certain track, so that the pull wire wheel (81,82) is configured to bring the rotary shaft of the rotary encoder to rotate correspondingly for generating the electrical signal corresponding to the channel selection instruction; the processing module is further configured to drive the light-emitting elements to be switched on according to the electrical signal, and the pointer is configured to move along the dial with the pull wire and align with a corresponding light-emitting element which is switched on.