Porous cable trays are suitable for cable laying projects in various civil, industrial, and commercial buildings, with a wide range of applicable scenarios. In commercial buildings such as office buildings, shopping malls, hotels, etc., it can be used for indoor strong and weak electrical wiring, network communication line laying, clean and beautiful, and suitable for indoor decoration environment. In industrial scenarios such as factory workshops, industrial plants, and storage parks, it can adapt to the laying of equipment control circuits, power cables, and lighting circuits, and adapt to dusty and continuous operating conditions. It can also be applied to semi outdoor scenarios such as rail transit, underground pipe galleries, municipal supporting projects, etc. With good ventilation and anti-corrosion performance, it is suitable for medium and long-term stable operation needs. Diversified specifications and material selection can be customized according to the load, environment, and wiring quantity of different scenarios.