Aluminium matrix composites are mainly prepared by using pure aluminium and aluminium alloy as matrix materials and introducing fibre, whisker, particle and other reinforcement combinations. Among them, particle-reinforced aluminium matrix composites have higher specific strength, higher wear resistance, lower coefficients of thermal expansion and better high-temperature resistance, which is an important development direction for lightweight metal structural materials, and aluminium matrix composites with added nanoparticles show even better performance. Currently, the manufacture of nanoparticle-reinforced aluminium matrix composites can be divided into liquid- and solid-state methods. The liquid method, according to the method of particle addition, is the additive method and in situ autogenous method. This paper focuses on liquid-addition nanoparticle-reinforced aluminium matrix composite preparation methods and their research progress in the automotive field, analyses the advantages and disadvantages of these techniques, and looks forward to the development of this material.