The invention provides a system for automatically conveying, charging and discharging a steel wire coil for optical cable production. The system comprises a main conveying truss, a plurality of branch conveying trusses and a PLC controller, wherein the plurality of branch conveying trusses work independently, and one branch conveying truss is configured for each optical production line in a one-to-one correspondence manner; the main conveying truss is used for conveying steel wire coils in a compound winding region to the plurality of branch conveying trusses in a one-to-multiple manner; the branch conveying trusses are used for conveying the steel wire coils on the main conveying truss to an armoring machine; the PLC controller is used for controlling coordinated actions between the main conveying truss and each branch conveying truss. Therefore, the system can realize full-automatic steel wire coil conveying, charging and discharging actions between the steel wire compound winding region and the armoring machines of the plurality of production lines, and does not need manual participation in the whole process, so that the labor intensity of workers can be greatly reduced, the work efficiency can be improved, use of forklift can be reduced, the safety coefficient of a workshop can be improved, and implementation of an intelligent factory is well prepared.