NOVELTY - An electrostatic spinning method involves dissolving polyvinyl pyrrolidone in ethanol. The polyvinyl pyrrolidone is stirred at 30-80 rpm at room temperature and kept aside for 12 hours, where the mass concentration of polyvinyl pyrrolidone ethanol solution is 9-11%. The obtained solution is stirred at 30-80 rpm for 12 hours at room temperature to obtain sol-gel. The sol-gel is put into the aperture of injector of size 0.2 mm-0.5 mm and the injection flow speed is 1 mL/h and the voltage is 20kV.    USE - Electrostatic spinning method for preparing one-dimensional nanometer tubular structure of solid oxide fuel cell cathode material.    ADVANTAGE - The method enables electrostatic spinning with better electrochemical performance.    DETAILED DESCRIPTION - An electrostatic spinning method involves dissolving the polyvinyl pyrrolidone in ethanol. The polyvinyl pyrrolidone is stirred at 30-80 rpm at room temperature and kept aside for 12 hours, where the mass concentration of polyvinyl pyrrolidone ethanol solution is 9-11%. The polyvinyl pyrrolidone ethanol solution is of formula Re1+xA'1-xCuO4 plus minus delta , where the Re is copper element. The copper nitrate solution is weighed, where the amount of copper nitrate is more than acetate and copper acetate and dissolved in distilled water to obtain uniform transparent system 1, where the amount of Re1+xA'1-xCuO4 plus minus delta in the system is (2-8 wt.%), Re is rare earth element, A' is alkaline earth metal element. The obtained solution is stirred at 30-80 rpm for 12 hours at room temperature to obtain sol-gel. The sol-gel is put into the aperture of injector of size 0.2 mm-0.5 mm and the injection flow speed is 1 mL/h and the voltage is 20kV. The syringe needle tip receiving roller is subjected to spinning for 12 hours to obtain an inorganic-organic precursor fiber. The injector needle and the copper wire are connected with the high pressure power supply. The inorganic-organic precursor fiber is heated at 50-80 degrees C and drying the inorganic-organic precursor fiber in the muffle furnace containing aluminum oxide porcelain boat for 14 hours. The resulting product is further heated to 300-500 degrees C and sintered for 2-6 hours, and further heated to 700-1000 degrees C and sintered for 15-60 minutes to obtain the battery cathode material.    Re=La, Ce, Pr, Nd, Sm, Gd, Dy or Eu;    A'=Ca, Sr or Ba;    x=0-1;and    delta =0-0.5.