With the rapid development of the optical communication industry, the implementation of national policies, the increase of broadband access fiber-to-the-home investment, and the continuously increased requirements for the important components in the construction and deployment of FTTH system solutions of the communication industry, fiber connection has become an important link in FTTH. The fast connector has become the main method of optical connection, and the emergence of the fast connector solves the problem that the optical fiber can only be spliced. This article mainly introduces the basic characteristics and technical parameters of high-performance fully compatible FMC fast connectors which is an important device in the construction and deployment of the current FTTH system solution. By implementing the basic characteristic of “high performance” and “fully compatible”, it can meet all the terminal connection demand under various FTTH constructions deployment. And at the same time, this article briefly explains the convenience of construction and practical application of the FMC fast connectors. Through the optimization and improvement of various performances, the connector product has become an important technology for future FTTH network construction. It is suitable for terminal connection in various FTTH construction deployment environments, reducing on-site construction costs, improving assembly efficiency, providing convenience and services, and meeting the needs of customer terminal connection with different usage habits.