The invention discloses a novel acoustic panel comprising an environmental protection coating layer and an acoustic panel main body; the environmental protection coating layer is coated on the acoustic panel main body; the acoustic panel main body is prepared by compacting shale ceramsites, high-strength modified cement and water into an arc shape; the acoustic panel main body is provided with multiple sound-absorbing holes therein; the area of all sound-absorbing holes account 30% of that of the acoustic panel main body; the sound-absorbing holes are diamond holes with inner diameter of 4-8mm. The invention provides a novel acoustic panel having advantages such as good noise reduction effect, high strength, strong weathering resistance and high safety.