Optical fiber adapter and optical fiber connector assembly

The invention relates to an optical fiber adapter and an optical fiber connector assembly which are used for being in butt joint with an optical fiber connector, and the optical fiber adapter comprises an adapter main body which is provided with a limiting groove and a locking elastic buckle; the adapter outer sleeve is arranged outside the adapter main body in a sleeving manner, an outer sleeve buckle is arranged on the inner side of the adapter outer sleeve, and an inner push ring is arranged between the adapter outer sleeve and the adapter main body; when the optical fiber connector is inserted into the optical fiber adapter, the optical fiber connector pushes the inner push ring in the insertion direction, so that the inner push ring pushes the outer sleeve buckle to enter the limiting groove, and meanwhile, the locking elastic buckle is buckled on the optical fiber connector. According to the optical fiber adapter and the optical fiber connector assembly, the optical fiber adapter or the optical fiber co