Multi-core indoor optical laid fiber

The utility model relates to a multi-core indoor optical cable, comprising an optical fiber arranged in the central part of the optical cable and an inflaming retarding jacket coating the outside. The utility model is difference from the prior product in that the optical fiber is coated with a layer of polyester type and a non-metal strengthener is arranged between the polyester type inner jacket and the inflaming retarding jacket. The utility model not only has a simpler structure and relatively better inflaming retarding performance, but also has great anti-pressure and drag-resisting performance and less contractility, and the utility model can effectively avoid the fiber in the cable to be stressed and reduce the attenuation, thus ensuring great optical transmission performance to the fiber.