The progress of the aging of double-base propellant, nitrate ester polyether (NEPE) propellant, hydroxy-terminated polybutadiene (HTPB) propellants was reviewed. The aging monitoring methods including spectroscopy method and embedded subminiature sensing devices have been used in recent years abroad. Aging under constant strain or stress, interface dewetting, health monitoring system, aging modeling and simulating are the main trend in the future.