The invention relates to a power line route protocol management system based on multiple schemes, multiple segments and multiple temporal states. The power line route protocol management system comprises a protocol level management unit, a protocol route segmentation unit, a protocol dynamic management unit, a protocol auditing unit and a route modification unit, wherein the protocol level management unit is used for establishing data correspondences among projects, schemes, versions and protocols; the protocol route segmentation unit is used for segmenting lines corresponding to the versions by adopting automatic segmentation and manual segmentation modes; the protocol management unit is used for separately implementing protocol management operation on each segment; the protocol auditing unit is used for judging whether segmentation protocols are successfully audited; and the route modification unit is used for establishing new versions based on the existing route versions and implementing route modification according to actual situations of regions. Compared to the prior art, by adopting the power line route protocol management system disclosed by the invention, the protocol management efficiency and management ability can be improved, better development on the management and control work of engineering project schedules can be facilitated, and the communication cost of projects can be reduced.