In optical fiber communication systems, the fiber optic connector is a key component that enables detachable connections between optical fibers, optical modules, and equipment. Its parameter characteristics directly determine the efficiency, stability, and reliability of the entire optical link. From data centers with ultra-high-speed transmission to harsh industrial environments, the performance of fiber optic connectors is critical to the overall system. This article will comprehensively analyze the parameter characteristics of fiber optic connectors from multiple dimensions, including optical performance, mechanical properties, environmental adaptability, interface standards, and material selection, to reveal their technical essence and application value.