Superalloys with high strength and large consumption are one of the vital materials for advanced aeroengines. However, its high density limits weight reduction and efficiency improvement of the aero-engines. Therefore, how to reduce weight of the superalloy component and improve efficiency of the engine is the research key point for new lightweight & high temperature-resistant structural materials. SiC fiber reinforced superalloy matrix composites show attractive potential in weight savings and have promising applications in aerospace industry. The severe interface reaction between the fiber and superalloy is an unresolved issue in the manufacturing process of superalloy matrix composites. In order to improve the interfacial compatibility between the superalloy and fiber, the common method is to introduce a diffusion barrier layer between the two. However, barrier coatings are prone to fracture during the densification process, and the protective effect of which is weakened then. Thus multi-component construction as an effective compromising method is introduced; it reduces the amount of interfaces and prevents fibers from eroding. From the perspective of research progress of SiC fiber reinforced superalloy composites, issues regarding the interface of the composites are discussed, improving method are summarized, and interface design are analyzed and expounded.