Abstract: Resin matrix and methods to prepare resin film which is used in RFI technology were investigated in this paper.The mechanical property and storage behavior of the resin film were tested.The resin film was applied to make composites in RFI technology and the mechanical property of the composites was detecred.The results indicated that the resin film is suitable for manufacturing of the composite in RFI technology process and the mechanical property of the composite is satisfactory.