Method for managing messages in a archiving system for e-discovery

A message managing method in an archiving system for e-discovery is prepared to store and manage electronic recording efficiently. According to a message managing method in an archiving system for e-discovery, message type is classified and captured by at least one of a port number and contents, and patterns in messaging a capture target message(S110). Data is classified and stored according to message attribute(S120). The data are backed up in order to be searched on the online storage for long term.