A playback method of infrared remote control audiovisual device comprises: utilizing a display interface and an audio output interface to output frames and an audio signal of a video; utilizing an infrared sensor to receive a first indication signal; pausing a playback of the display interface and an output of the audio output interface according to the first indication signal, so that the display interface displays a paused frame; utilizing the infrared sensor to receive a second indication signal; determining a target character pattern of a target block in the paused frame according to the second indication signal; extracting a determined audio track corresponding to the target character pattern from the audio signal according to a relation between the pre-processed character feature sets and pre-processed audio tracks; controlling the display interface to resume the playback and controlling the audio output interface to output the determined audio track.