Organic electroluminescent (EL) devices with color tunable function using poly[N-(p-diphenylamine)phenylmethacrylamide], PDPMA doped by various fluorescent dyes (nile red, DCM, TPP) as a polymer hole transporting material and Alq(3) as a host emitting material were fabricated. The fluorescent dyes used as guest emitting materials. The luminescence of the doped devices was significantly influenced by the amount and the structure of the fluorescent dyes. Especially, the DCM doped device emitted red light with the brightness of 1500 cd/m(2).