Abstract: When the 5G network is deployed on the station side and wide-area transmission of the power IOT (Internet-of -things), it needs to meet the requirements of power grid communication specifications for the network reliability. To this end, the new radio layout scheme of 5G on the power grid station side is designed, and the active-standby redundancy mode of wireless connection is adopted. Furthermore, the technologies of cross-layer hybrid monitoring, network address management and dual-end cooperative channel switching are proposed. On the 5G core network side of wide-area transmission, the multi-gateway fusion layout mode between the sinking of the user plane function (UPF) and the power transmission network is realized. Therefore, the redundant path algorithm of its service function chain (SFC) is proposed. Key performance indicators are obtained through field test layout and path planning simulation, which verifies the reliable performance of the proposed method under millisecond delay. Finally, the redundant networking strategy that matches the power grid communication requirements with the 5G network capabilities, as well as the corresponding 5G QoS index (5QI) parameter configuration suggestions, is put forward.