The present invention can effectively absorb (sound) high noises generated in high frequency areas such as high speed trains, high speed trains and expressways, and improve structural strength to maintain durability and stability at high speeds. Provide soundproof wall panels. The soundproof wall panel has a front plate 10 having a front portion as an uneven portion 11 to maximize the opening area, a sound absorbing material 22 disposed on the back surface of the front plate, and structural strength so as to efficiently absorb (sound) the source. It consists of a raised rear plate (12). In particular, the front plate 10 is a concave-convex shape of the concave-convex portion 11 and at the same time to form a resonance hole of the plurality of resonance holes (11c) to absorb the noise scattered from the front plate 10 as much as possible By considering the porosity, sound absorption and so on have been remarkably improved. The rear panel 12 has a low transmission loss due to the coincidence effect in which noise is transmitted while the plate vibrates according to a high sound pressure by bending only one place in the related art, but the panel of the present invention has one surface in the longitudinal direction to prevent this. The bent portion 20 was formed as before, and a total of 6 damping sheet members 21 were inserted in three positions in the vertical direction to minimize the vibration of the plate and to improve sound absorption and sound insulation effects. In addition, the thickness of the panel has also been increased from the conventional 95mm to 125mm to significantly improve the sound absorption effect in the mid and high range.
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