The method to produce the hollow micro/nano fibers through the bicomponent spinneret of electrospinning was introduced and the influence of the process parameters on the morphology of the micro/nano fibers was presented in the paper. The result revealed that the PAN fibers with uniform hollow construction could be collected while the feed rate of the inner solution was set at 0.08ml/h (single hollow fibers) or 0.06ml/h (double hollow fibers). Meanwhile, the morphology was in good condition with 15kv voltage and 20cm receiving distance.