This invention relates to an information transporting net system for actualizing FTTX multiple nets merging one including multiple information, multiple systems, multiple services, which comprises a data net, a voice communication network, A video network, a protection control system network, a center automatic control network. It is characterized in that the said data net, the voice communication network, the video network links with optical network device OLT through optical fibre by exchanging and converting devices, the OLT via net management, through optical fibre links with user net unit ONU, ONU through its interface links with users' voice, video, data devices and control device, the invention constructs a high-efficiency net circuit with uniformed switch-in and application interface, and can avoid overlapping construction.