The fiber optical fast connector is a very innovative field termination connector. It contains factory-installed optical fiber, pre-polished ceramic ferrule, and a mechanical splice mechanism. The introduction of optical fiber or indoor optical fiber can be inserted into the mechanical splicing mechanism, no other tools are needed, and the termination process only takes about 2 minutes, which greatly saves installation time. The optical fiber quick connectors/cold splices currently on the market can terminate single-mode fibers and multimode fibers with diameters of 250μm, 900μm, 2.0mm, and 3.0mm. The optical fiber quick connector/cold splice can be directly applied to the environment such as corridors, home cables, etc., without redundant protection, can basically achieve the strength of the original line, reduce the wiring requirements, and therefore greatly increase the speed of FTTH fiber cabling, which is An important guarantee for optical networks.