Abstract: In recent years, the application of large-scale special tunnel construction machinery for highway tunnel construction in my country has become an industry trend, and its use experience has become more and more mature. Compared with the traditional manual drilling and blasting method, the three-arm rock drill has "safe, efficient, Comprehensive advantages such as "economy".This article takes the "East Tianshan" super-long tunnel of the Xinjiang G575 line Baha highway construction project as an example to introduce the application of the three-arm rock drill in the concrete construction, in order to provide a reference for related construction.