The preparation of carbon fibers based on phenol formaldehyde by electrospinning was reported． Synthetical A-stage resol and PVA salutions of different mass ratios were used for electrospinning．After solidified at 150℃ for all hour

phenol formaldehyde(PF)fibers were obtained．When the PF fibers(mass ratio of PF and PVA as 1：2)were calcined at different temperature

the fibers based on PF were obtained

whose diameters were less than 200 nm．By field emission scanning eleotron microscopy(FESEM)

the diameter and morphology of the fibers were observed and compared．The IR spectra showed that the fibers calcined at 600℃ were carbon fibers with expected morphology．