A method of managing a sound source in a digital AV device and an apparatus thereof are provided. The method of managing a sound source in a digital AV device includes: extracting at least one sound source from sound being reproduced through the digital AV device; mapping an image to the extracted sound source; and managing the sound sources by using the mapped image. In addition, preferably, the extracted sound source is registered, changed, deleted, selectively reproduced, or selectively deleted by using the image. Accordingly, sound being output can be visually managed by handling the sound sources separately, a desired sound source can be selectively reproduced or removed such that utilization of the digital AV device can be enhanced.