The research process of hydroxyl-terminated polyether (HTPE) propellants, including the development and production of HTPE binders, comparison between HTPE and hydroxyl-terminated polybutadiene (HTPB), aging of HTPE propellants and improving on insensitive property of HTPE propellants were reviewed. It is indicated that HTPE propellants can be used as alternative to HTPB propellants due to its remarkable insensitive property and perfect mechanics performance.