The invention provides a glass fiber felt for precious-metal recovery. The glass fiber felt uses glass fibers as a basic raw material, needling is conducted on a chopped glass fiber cotton bed by adopting a needling method after sedimentation so that fiber webs among felt layer glass fibers can be reinforced to make a felty non-woven capture material. A composite fiber material is obtained through soaking of a ferric nitrate solution, and the composite fiber material of a felt body surface layer is roughed through etching of the mixed liquid of nitric acid and phosphoric acid. The glass fiber felt has the advantages of the high temperature resistance, corrosion resistance, small elongation shrinking percentage and high strength of glass fiber fabrics, the felt layer fibers are of single fiber and three-dimensional micro-pore structures, the porosity of fibers is high, the airflow resistance of nitrogen oxide is small, and the glass fiber felt is a high-speed, efficient and high-temperature precious-metal capture material.