The invention discloses a grouped optical fiber limiting and protecting integrated device. The device includes a shell, a guide groove is formed in the shell, and a bottom plate is fixedly arranged atthe groove bottom of the guide groove; a supporting rod is fixedly arranged on the bottom plate. A lower limiting ring is fixedly arranged above the supporting rod, a cover plate is arranged above the guide groove, a fastening groove is formed in the upper surface of the cover plate, a connecting platform is arranged on the groove surface of the guide groove, a connecting screw rod penetrates through the fastening groove to be connected with the connecting platform, and an upper limiting ring is fixedly arranged on the bottom surface of the cover plate and corresponds to the lower limiting ring up and down. The device is novel in structure, the position of the optical fiber is limited through upper and lower supporting rings; the upper supporting ring is fixedly connected with the cover plate; separation and connection of the upper limiting ring and the lower limiting ring are completed while the cover plate is opened and closed, the operation efficiency is improved, optical fiber attenuation caused by optical fiber bending, extrusion and poor optical fiber butt joint can be effectively prevented through the effects of the groove body and the cover plate, the overall use performance of a product is effectively improved through the protection device, and the service life of the optical fiber is prolonged.