Glass-steel cable tray is composed of glass fiber reinforced plastic, flame retardant and other materials. It is compressed by a compound molding material with stainless steel screen. Due to the low thermal conductivity of the selected material and the addition of flame retardants, the product has not only fire-resistant heat insulation, self-extinguishing property, but also high corrosion resistance. Meanwhile, it also has the advantages of light structure, aging resistance, safety and reliability. It can be used together with metal cable trays and used in chemical engineering, metallurgy, petroleum and other heavy corrosive environment.