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With the rapid development and application of China's aerospace and civil machinery fields, the demand for the production and use of titanium-aluminum alloy products continues to increase, and the study of low-cost, high-performance titanium aluminum alloy preparation processes has been put on the agenda. The process, principle, advantages and disadvantages of powder metallurgy, thermite reduction, electrodeposition and molten salt electrolysis to prepare titanium aluminum alloy were summarized, and pointed out the future research direction.