The utility model provides a novel city power cable channel. The cable channel is closed by a cover plate, side plates and a bottom plate, and the section of the cable channel is square. Cable supports are respectively mounted to the left side plate and the right side plate in a slidable manner, and the adjacent cable supports are parallel to each other. Support mounting slots are disposed in the inner wall of the left side plate and the right side plate, each cable support has a T-shaped structure composed of a vertical piece and a horizontal piece, the width of the horizontal piece is less than that of the vertical piece, and each vertical piece is slidingly inserted in each support mounting slot to fix each cable support. A monitor support is slidingly mounted in corresponding support mounting slots, and the monitor support is arranged at the top of the support mounting slots. The novel city power cable channel is simple in structure and convenient to mount, material can be saved, and an expanded range of application can be achieved. The cable can be protected from water and moist by disposing a water channel and a seal cover, and sand for extinguishing the fire is filled in the seal cover, so the novel city power cable channel is waterproof, moistureproof and fireproof.