Embodiments of the present invention provide an optical fiber connector assembly, an optical fiber adapter, and an optical fiber connector to solve the problem of inconvenience in use caused by using a thread-locking manner in the prior art. The optical fiber connector, optical fiber adapter and optical fiber connector assembly provided in the present invention may be used as an outdoor connector to achieve plug and play. The optical fiber connector supports blind-mate, and the operation is convenient. Time taken to install and disassemble the optical fiber connector provided in the present invention is only ⅕ of the time taken to install and disassemble a common thread connector.