Aiming at the defects of the existing power grid micro meteorological measurement methods, a new micro meteorological measurement method based on MEMS is proposed by using the relationship between wind speed and wind pressure, and its feasibility is verified by experiments. The experimental results show that when the wind speed is lower than 6m / s, the error is greater than 2m / s. when the wind speed is greater than 6m / s (soft breeze), the accuracy of the design is high, and the error does not exceed 2m / s, which can meet the needs of use under strong wind conditions. The structure of the wind speed sampler is studied. The research shows that the structure of the wind speed sampler has a great impact on the accuracy of the collected wind speed data. The structure of the wind speed sampler is studied through experiments, the data obtained by using a silica gel sampling tube with an aperture and wall thickness of 3×5mm and a length of 30cm is the closest to the wind speed sampling device used for comparison.