Multi-path signal transmission method and system in optical communication network

The invention provides a multi-path signal transmission method and system in an optical communication network, and relates to the field of optical communication transmission, and the method comprises the steps: obtaining a target data packet to be transmitted by an optical communication device and path state data of each transmission path of the optical communication device; adaptively splitting the target data packet into corresponding sub-data packet groups according to the content perception information of the target data packet, and screening at least one key sub-data packet from the sub-data packet groups; for each key sub-data packet, determining a forward error correction code corresponding to the key sub-data packet so as to update the target sub-data packet group; and determining a target transmission path corresponding to each target sub-data packet in the target sub-data packet group to transmit the corresponding sub-data packet, and transmitting each forward error correction code and the path iden