The utility model provides a noise reduction barrier used for noise control of a coal cleaning plant. The noise reduction barrier used for noise control of the coal cleaning plant comprises a noise reduction barrier frame, wherein the noise reduction barrier frame is formed by welding of zinc plated keels, a perforation plate is fixed inside the noise reduction barrier frame, an external panel is fixed outside the noise reduction barrier frame, and sound absorption cotton wrapped with alkali-free glass wool cloth is filled between the perforation plate and the external panel. The noise reduction barrier is arranged at the periphery of a vibrating screen and a crushing machine in the coal cleaning plant, thus noise sources are separated from other parts of a workshop, and the aim of reducing noise is achieved. By adopting the noise reduction barrier disclosed by the utility model, noise is actively reduced on the noise sources, transmission ways of vibration and noise are blocked in a transmission route, noise environment of the coal cleaning plant is obviously improved, and the noise reduction barrier disclosed by the utility model plays an important role in occupational health protection of employees.