Abstract: Abstract: This paper analyze the employment effect of minimum wage, based on 30 provinces of the country and the construction of panel data, and use the intermediary effect model to analyze the transmission mechanism. The minimum wage has positive effect to the construction industry employment across the country. This positive effect is partly caused by the improvement of labor productivity that leaded by human capital level and technical progress. The minimum wage can promote construction employment of eastern and western region. The impact on the central region is not obvious. Further found that the effect of minimum wage on employment exist threshold, before the threshold, raising the minimum wage will reduce employment; surpass the threshold, raising the minimum wage will increase employment.