In order to improve the interfacial adhesion of carbon fiber - nylon 6 composites, n polymer(GP), nylon 6-g-polyacrylamide(PAAm), was synthesized for interfacial bonding agent by suspension Via polymerization. Nylon 6 powders were suspended in aqueous solution of acrylamide(Ahm) and cerium ammonium nitrate(CAN) as an initiator. The produced GP was separated into mfresol soluble type and water dispersable type, The production ratio of mfresol soluble GP to the total GPI percent yafiing, yafiing efEciency, AAm conversion, and nylon 6 conversion under various polymerization conditions were determined. The polymerization reaction proceeded likely at the interface between suspended nylon 6 and AAm absorbed to the surface of nylon 6 particles. The uafiing efficiency and nylon 6 conversion are 70 and 50% respectively. The production quantity of the water dispersable GP is higher than that of the mfresol soluble GP.