Curled　or　helical　structures　of　polymeric　fibers　have　been　produced　from　a　composite　of　one　conducting　and　one　nonconducting　polymer　by　electrospinning.　The　conducting　polymer　was　Poly(aniline　sulfonic　acid)(PASA),　and　the　nonconducting　polymer　was　Poly(ethylene　oxide)(PEO).　Scanning　electron　microscope　(SEM)　was　used　to　character　the　morphology　of　the　polymeric　fibers.　The　results　showed　that　the　diameter　of　the　helix　was　gradually　reducing,　and　the　average　diameter　of　the　PEO/PASA　fibers　was　gradually　increasing　when　the　mass　fraction　of　PEO　or　PASA　was　increasing.　The　morphology　of　the　curled　or　helical　structures　was　also　influenced　by　the　voltage　which　varied　from　7kV　to　15kV.