A separate drainage hole after the construction has excellent drainage performance, easier to remove the foreign substances flowing into the internal chamber 0 people noise barrier without forming maintenance and repair is very straightforward wind load reduction-type sound insulation panel is disclosed. In the wind load reduces, wherein soundproof panels wind load reduction-type sound insulation panel which may be configured equipped with a plurality of vent, and a plurality of said vent and a plurality of resonance chambers communicating respectively being the wind passing through a plurality of said vent, said vent and configured to include at least three are respectively disposed between and in the sound insulation board sound insulation board forming resonance chamber by at least two grid-shaped to form the resonance chamber between the sound insulation board member having, respectively, to the inside the resonance chamber the inlet allows the water can be discharged smoothly to the outside and allows the moisture in the bottom of the resonance chamber by the speed of the faster the wind while passing through the plurality of the said vent can easily dry the vent is installed in contact with the bottom of the resonance chamber and the configuration.