This paper introduces a simple hydrazine treatment method to reduce the yellowing of silver nanowire transparent conductive electrodes. To investigate the effects of hydrazine treatment on the yellowing of silver nanowire electrodes, the optical and electrical properties of silver nanowire electrodes were analyzed before and after hydrazine treatment. The optimal hydrazine treatment conditions were investigated by varying the concentration and thickness of hydrazine; the effect of hydrazine treatment on the long-term stability of silver nanowires was also analyzed.