Nanocarbon reinforcements have excellent mechanical, thermal and electrical performances and are one of the best metal matrix composite reinforcements. Composites with outstanding mechanical properties and superior thermal and electrical conductivity can be made by mixing nanocarbon reinforcements with aluminum and its alloy matrix, showing significant potential for a new generation of aircraft component materials. Promoting low-cost and large-scale preparation techniques is urgently needed, and the casting method is the best option for this. Therefore, the casting methods used for nanocarbon reinforced aluminum matrix composites domestically and abroad are reviewed and classified by the way in which the nanocarbon reinforcement is incorporated into the aluminum melt. This paper provides a detailed introduction to the primary casting techniques for nanocarbon-reinforced aluminum matrix composites, including stirring casting, pressure casting, semi-solid casting, and pressure infiltration. The physical and mechanical qualities of various casting techniques are analysed and summarized in this work, which also focuses on the major scientific issues in the preparation of melt-cast nanocarbon-reinforced aluminum matrix composites and predicts the direction of future research.