Improved communication optical cable network structure of power distribution automation system

The utility model discloses an improved communication optical cable network structure of a power distribution automation system. A structure of a communication optical cable network is independent of a network structure of a power distribution network. Optical cables on trunks of power lines in the same path are merged through an optical cable cross-connecting box or an optical fiber distribution frame, and endpoints of broken optical cables on branches of the power lines are connected through overlapping optical cables. The overlapping realizes the merging of optical fiber communication trunks of the power distribution automation system as well as the connection of the branches, greatly shortens the length of the optical cables, saves investment, saves port resources of optical fiber distribution equipment of a transformer substation, solves the difficulty of space shortage of a screen cabinet, reduces the occupied pipe-hole resources or pole-tower resources required by optical cable laying, simplifies the optical cable network, reduces the complexity and workload of operating maintenance, is higher in reliability of power distribution automation communication circuits, simplifies the topological structure of the communication circuits, saves port resources of communication equipment of the transformer substation, and makes the maintenance and management of the circuits simpler and troubleshooting easier.