Polyacrylonitrile　(PAN)/N,　N-dimethylformamide　(DMF)　solution　was　used　as　raw　material　to　prepare　nanofibers　through　electrospinning　method.　Focusing　electrode　was　used　as　the　collecting　device.　Suspended　electrospun　fibrous　assembly　can　be　obtained　with　a　high　degree　of　alignment　through　the　process.　Effects　of　solution　concentration,　number　of　stainless　steel　bar,　collecting　distance,　flow　rate　and　rotation　speed　of　electrode　on　the　degree　of　alignment　of　fibrous　assembly　were　studied.　Results　showed　that　aligned　fibers　can　be　obtained　through　collecting　electrodes　with　both　four　and　six　stainless　steel　bars.　Degree　of　alignment　for　the　obtained　fibers　increases　with　the　increase　of　solution　concentration.　Medium　collecting　distance　is　more　suitable　for　the　alignment　of　fibers.　Fibrous　array　with　a　high　degree　of　alignment　can　only　be　prepared　at　relatively　low　flow　rate　and　voltage.　Rotation　of　collecting　electrode　can　deteriorate　the　alignment　of　fibers.　©,　2015,　Editorial　Department　of　Journal　of　Sichuan　University.　All　right　reserved.