The invention discloses a full-dry multi-core fiber ribbon cable and relates to the technical field of an optical cable. A water-blocking tape is longitudinally wrapped on the outer surface of a cable core; a non-metal reinforcement layer is arranged on the outer surface of the water-blocking tape; and an outer sheath is arranged on the outer surface of the non-metal reinforcement layer. The cable core comprises non-metal dry-type loose tube fiber units, non-metal reinforcing material glass yarns and an external total sheath, wherein the non-metal dry-type loose tube fiber units and the non-metal reinforcing material glass yarns are externally wrapped by the external total sheath. The full-dry multi-core fiber ribbon cable is reasonable in structure design, and does not contain ointment, thereby reducing weight and cost; through a double-sheath structure, the cable is not easy to tear and is solid and durable; and through the non-metal dry-type center tube fiber ribbon cable, purchase cost can be reduced, and meanwhile, multi-time laying is not needed, thereby facilitating construction, saving pipeline resources and reducing construction cost.