Abstract: Aiming at requirements of integration transmission of digital signal of industrial TV, monitoring and control information, voice information, a new integrated monitoring and control backbone network system - mine-used GEPON system was developed combining with development achievement of international telecommunication network technology. The paper expounded basic requirement of mine-used GEPON, analyzed structure characteristics of backup GEPON system, and put forward a heat backup self-cure ring for mine-used GEPON which considering cost, performance and construction. The system has characteristics such as low cost, wide band, reliable, stable and easy installment and maintainance.