In recent years, network routing technology has been developed rapidly. As the core protocol of the next generation Internet, IPv6 's huge address capacity and various properties can meet the needs of the rapid development of the Internet.SR-MPLS and SRv6 based on segmented routing technology are the direction of network routing development. With the development of Shendong Coal Group ' s intelligent construction, the application scenarios of the company ' s network are increasing, and the company ' s performance requirements for the network are getting higher and higher. Based on the network requirements of Shendong Company, this paper analyzes the principle and characteristics of traditional MPLS and SR-MPLS technology, and puts forward the backbone network architecture of Shendong Company based on SR-MPLS technology, hoping to promote the application and improvement of segment routing technology in coal industry.