Abstract: Titanium fiber porous materials have been widely used in many industrial fields because of their special structure and properties. PEM-electrolytic cell has become one of the most ideal methods used for green hydrogen preparation in recent years. Titanium fiber felt is an ideal material for preparing gas diffusion layer of PEM electrolyzer. But, due to cost reasons, large-scale promotion in China is temporarily limited and it is imperative to reduce the preparation cost of anode gas diffusion layer.