Carbon fiber‐reinforced silicon carbide (C f /SiC) ceramic matrix composites have promising engineering applications in many fields, and they are usually geometrically complex in shape and always need to join with other materials to form a certain engineering part. Up to date, various joining technologies of C f /SiC composites are reported, including the joining of C f /SiC‐C f /SiC and C f /SiC‐metal. In this paper, a systematic review of the joining of C f /SiC composites is conducted, and the aim of this paper is to provide some reference for researchers working on this field.