Abstract: This article, for the high-grade highway subsidence caused by different degree of damage of the status, analyzes the influence of the subsidence deformation of five indicators of high-grade highway on mining failure characteristics of high-grade highway. On this basis, considering the time and space process of mining deformation of high-grade highway development, according to different production periods of high mining damage, the article puts forward the different mining period control measures and protection countermeasures for highway.