Caption display method and device in content retrieval on a/v network supporting web service technologies

Disclosed is a caption display method and device in contents retrieval on an A/V network supporting web service technologies. A caption display method in contents retrieval on an A/V network comprises searching for captions corresponding to contents selected for retrieval, and loading the searched captions; parsing the loaded captions; decoding the parsed captions and the contents selected for retrieval; and encoding contents containing the decoded captions into a retrievable format. Thus, since the contents and the captions are simultaneously provided, user's convenience is enhanced.