Abstract: With the accelerated advancement of intelligent mine construction, the mining industrial ring network, as a critical production support system, has seen its high reliability become a fundamental cornerstone for ensuring mine safety and the successful implementation of intelligent applications. This paper conducts an in-depth investigation into the high-reliability assurance system of mining SPN (Slicing Packet Network) industrial ring networks. Focusing on three critical dimensions—equipment reliability, network reliability, and engineering reliability—the study systematically examines the implementation approaches and synergistic mechanisms of key SPN technologies. These include chip-level redundancy design, multi-layer protection mechanisms, hard slice isolation, intelligent sensing and simulation, alongside modular design, predictive maintenance, and remote operation and maintenance capabilities. The research demonstrates how these integrated technological solutions collectively enhance the reliability and resilience of industrial communication networks in mining environments. Research demonstrates that by establishing a reliability technology system covering components, equipment, networks, and operational maintenance, SPN can effectively meet the high-reliability operational demands of communication networks in complex mining environments. Furthermore, this paper proposes an SPN-centric high-reliability architecture for mining industrial ring networks, providing systematic references for the planning, construction, and maintenance of intelligent mine communication systems.