The invention provides a feeding deep-sea optical cable, which comprises an optical unit, an armored layer, a feeding layer and an insulating layer, and is characterized in that the armored layer comprises an inner stranded layer and an outer stranded layer, the inner stranded layer is provided with a plurality of first stranding metal wires, the outer stranded layer is provided with a plurality of second stranding metal wires and a plurality of third stranding metal wires, the second stranding metal wires and the third stranding metal wires are alternatively arranged in sequence, and the diameter of the third stranding metal wires is less than the diameter of the second stranding metal wires; the plurality of first stranding metal wires are stranded outside the optical unit, the second stranding metal wires and the third stranding metal wires are stranded on the first stranding metal wires at intervals, the third stranding metal wires are stranded on the second stranding metal wires, and stranding directions are the same. The feeding deep-sea optical cable improves the impact resistance, the flattening resistance and the mechanical stretching performance of submarine cables, improves the longitudinal water blocking performance and the radial water blocking performance of the submarine cables, reduces the manufacturing cost and maintenance cost of the submarine cables, reduces damages for an optical fiber in the manufacturing process and improves the insulating performance of the submarine cables.