Curved porous upward bend is a specialized upward turning accessory in cable tray wiring systems, suitable for the vertical upward corner laying requirements of various trough, ladder, and tray type cable trays. It is widely used in various wiring projects such as commercial buildings, industrial plants, computer rooms, weak current, and electromechanical renovations, solving the construction problem of uphill turning of lines. The product adopts a curved streamlined design, abandoning the rigid corners of traditional right angle bending, allowing cables to smoothly transition and bend, effectively reducing cable bending losses, protecting cable insulation layers, and improving the stability of line operation. The porous structure of the board has good breathability and heat dissipation effect, and is also convenient for on-site fixation, threading, and regular wiring, suitable for long and short distance turning and laying scenarios. This accessory has neat workmanship, standard size, high compatibility, easy installation and adaptation, and can perfectly match conventional bridge specifications. The streamlined structure reduces the hidden dangers of line accumulation, and the wiring is neat and beautiful, making it easy to maintain and repair in the later stage. It is a commonly used high-quality steering accessory in the fine wiring engineering of electromechanical systems.