Abstract: Disclosed is a media message search method and system through a keyword extracted from a media file. The media message search method may include generating a specific session of an instant messaging service or participating in the specific session; analyzing a media message to be sent through the specific session or a media message received through the specific session; extracting a keyword of media included in the analyzed media message; storing the extracted keyword in a local database of the computer apparatus in association with an identifier of the analyzed media message; providing a search interface for an instant message sent and received through the specific session; retrieving an identifier from the local database based on a keyword input through the search interface having been stored in the local database in association with the identifier; and providing, for display, a media message having the retrieved identifier.