Abstract: On account of many data interfaces of coal mine monitoring and control system and it cannot achieve data unified communication and sharing at present, the paper designed a mine-used integrated data access gateway based on EPON technology combining with advantages of EPON technology. The gateway can realize data integrated access of different interfaces and data resources sharing of different systems. The actual test results show that backbone network communication rate of the gateway is 750 Mbit/s, transmission distance of backbone network is 15 km, and line redundancy switching time is less than 100 ms.