Polyimide composites have been widely used in the aerospace field due to their excellent high temperature resistance and mechanical properties. However, the complexity and high cost of autoclave forming process make it difficult to meet the rapid processing of polyimide resin matrix composites, which limits its further application. In this manuscript, the research status and development trend of polyimide matrix resin and its composites suitable for RTM technology have been reviewed, with emphasis on the domestic and foreign research of phenylethynyl terminated polyimide and its composites.It is an important developing direction to improve the temperature resistance of RTM polyimide resin and its composites while maintaining its low molding viscosity and high toughness.