In order to know the effect of the composition and structure of the coupling agent(the graft copolymer on mechanical properties of carbon fiber(CF) reinforced isotactic polypropylene(IPP) laminated composites, IPP-g-PAAm(Polyacrylamide) copolymer were synthesized by the "inverse emulsion graft polymerization technique" at various amounts of emulsifier(0.03, 0.05, and 0.08ml of Tween 80). AAm conversion, PP conversion, % grafting, grafting efficiency were investigated, and the production ratio of the respective types(i.e., water-dispersible(WD), methanol-dispersible(MD), and toluene-soluble(TS) graft polymer) were dependent on the PAAm content in the resulting graft copolymers(GP). In addition, to make the laminated composites by the film method, the IPP prepregs were prepared with the CF treated with GP differing in type and amount of emulsifier under IPP sheet at optimum molding conditions. These optimal condition was based on the consideration of uniformity of dispersed fiber in IPP matrix and the observation of fiber-matrix interfacial microstructure within the impregnated(prepreg) strand via optical microscopy. From this study, it was found that among the random oriented short CF/IPP composites(ν_f=ca. 20.5%) treated with 3 different graft polymers(GP), the case of TSGP showed the highest impact energy measured by the steel-ball typed impact test, while in the case of the 4-ply cross-typed laminated CF/IPP composites(ν_f=ca. 28%) with the GP's of only WD type, the case of smaller amount of emulsifier exhibited better tensile properties and impact behavior.