▎ 摘　　要

NOVELTY - Method for controlling length of a silver nanowire involves using solvothermal method to obtain a silver nanowire solution with an average length of 100-150 mu m, diluting the silver nanowire solution with 0.02 plus minus 0.005 mol/L ethanol, preparing 0.3-0.5 g/l graphene oxide solution by dissolving graphene oxide powder in water and ultrasonically processing, mixing 2-4 drops of graphene oxide solution to 10-15 ml silver nanowire solution, energizing the mixture with 80-120 Hz of 40-60 V alternating current for 10-20 minutes. USE - Method for controlling length of silver nanowires (claimed). ADVANTAGE - The method prevents direct short circuit of silver nanowires by adding graphene oxide solution, and controls silver nanowire to maximum possible length.