The research and development of additive manufacturing technology in superalloy composites are comprehensively summarized in this paper. The powder mixing, material metallurgical process and strengthening mechanism of superalloy composites made by additive manufacturing are systematically reviewed. Moreover, the microstructure, defects and the properties of superalloy composites of additive manufacturing are analyzed and compared in detail. On this basis, the research status of additive manufacturing superalloy composites is summarized, the directions of development in future are forecasted, including: the design of new strong phase, the addition mode of reinforcing phase and the influence mechanism of creep and fatigue properties of superalloy composites by laser additive manufacturing. This paper will be beneficial to the research and development of superalloy composites by additive manufacturing.