Abstract: Shaanxi Coal and Chemical Industry Group has developed an intelligent coal mining system based on 5G+Industrial Internet. By employing dual-band (3.5 GHz+2.1 GHz) networking, 1D3U frame structure optimization, and an double-active core network architecture, the system achieves 700 Mbps high bandwidth, <100 ms low latency, and 99.99% high reliability in underground fully mechanized mining faces. The project deployed ZY-X-800 industrial gateways and other equipment, completing the wireless transformation of hydraulic supports and shearers. This resulted in a 40% reduction in equipment nodes, a 60% decrease in failure rates, and a 15% increase in annual production capacity per working face. The project provides a replicable intelligent coal mining solution, promoting the industry's upgrade towards fewer personnel and transparent operational models.