NOVELTY - The method involves allowing prepreg to which mixed solution is applied to be heated and pressed by a hot press such that hydrogen, air and coolant flow fields are formed or to pass through a hot roller to be formed into a separator (30). Unnecessary portions are removed from the heated and pressed separator using a trim cutter. The formed separator is post-cured. The mixed solution is applied to the prepreg as a continuous carbon fiber-reinforced composite such that a graphite layer is integrally formed with the prepreg.    USE - Method for manufacturing a composite separator for a PEMFC used in various applications. Uses include but are not limited to a power source for zero-emission vehicles such as passenger automobiles e.g. sports utility vehicles (SUV), buses, lorries, various commercial vehicles, watercraft e.g. boats and ships and aircraft, hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles and hydrogen-powered vehicles, an independent power plant, a portable power source and a military power source.    ADVANTAGE - The method enables forming graphite around an outer end of the separator with high thermal conductivity, low contact resistance and high surface energy so as to quickly discharge water produced by reaction, thus reducing current loss in a fuel cell stack, and hence increasing efficiency of the fuel cell. The method enables forming a graphite layer on the outer end of the continuous carbon fiber composite separator to reduce electrical contact resistance and increase hydrophilicity of the surface of the separator, thus efficiently removing water produced by reaction from the fuel cell.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a composite separator for a polymer electrolyte membrane fuel cell (PEMFC).    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a fuel cell stack.    Separator (30)    Gas diffusion layer (40)    Gasket (41)    End plate (50)    Solid polymer electrolyte membrane (60)