Aluminum-lithium alloys, as a new type of aerospace material, have a wide range of application prospects due to their advantages of low density, high specific strength and specific stiffness. Existing research on Al-Li alloys focuses on microalloying and hot processing (e.g., hot extrusion, heat treatment, etc.), but neglects the fact that the quality of the original Al-Li alloy ingot prior to the hot processing step also has a great impact on the final properties of the alloy. However, not much research has been done on the melting and solidification forming technologies for Al-Li alloy ingots. Therefore, this paper reviews and summarizes the preparation techniques of Al-Li alloy ingots from both high-vacuum and non-vacuum environments, including spray forming, powder metallurgy, and ultrasonic-assisted extrusion casting forming process. This paper analyzes the advantages and disadvantages of these technologies in depth, and puts forward some new ideas or prospects for the preparation of Al-Li alloy ingots.