Dust-proof mesh is a wind-proof and dust-suppressing wall that uses the principle of aerodynamics and is processed into a certain geometric shape, opening ratio and different hole shapes according to the results of the on-site environmental wind tunnel experiment, so that the circulating air (strong wind) can pass through the wall from the outside. At the time, the upper and lower interfering airflow is formed on the inside of the wall to achieve the effect of strong wind on the outside, weak wind on the inside, small wind on the outside, and no wind on the inside, so as to prevent the flying of dust.