Skeleton optical fiber ribbon cable has the characteristics of high optical fiber density, small outer diameter saving pipeline resources, good lateral pressure resistance, stable structure, convenient connection, no filling grease, and environmental protection. It can fully meet the construction. The technology of ribbon fiber optic cables is well-established in the telecommunications industry and is favored for its high fiber density and compact size. It can have different manifestations according to different environments, such as the need for waterproofing, buffering. The invention discloses a skeleton type optical fiber ribbon cable which comprises a skeleton, wherein a plurality of skeleton grooves are uniformly formed in the circumference direction of the skeleton, a central reinforcing piece is arranged in the center of the skeleton, optical fiber units are. A ribbon cable is a type of optical fiber cable design consisting of multiple fibers that are fused together into a flat ribbon. It enables far greater transmission capacities than conventional design. Hence, it has become essential for applications requiring maximum data throughput within tight.