原位反应合成是一种较为先进的复合材料制备工艺。铝原位反应可归纳为氧化物还原反应，直接合成反应、催化反应与其它反应四类。对于铝原位反应，目前存在两种反应机理，即扩散机制和反应－扩散机制。反应产物生长过程可以依据势垒模型、溃散模型或开裂－渗入模型进行描述。文中，主要就铝原位合成的反应模式、反应机理及反应产物的生长模型进行了评述。 In situ reaction synthesis is a more advanced composite material preparation process. Aluminum in situ reaction can be summarized as oxide reduction reaction, direct synthesis reaction, catalytic reaction and other reactions. For aluminum in situ reaction, there are two reaction mechanisms, namely diffusion mechanism and reaction-diffusion mechanism. The growth of the reaction product can be described by a barrier model, a collapsing model or a cracking-infiltration model. In this paper, the reaction mode, reaction mechanism and reaction product growth model of aluminum in situ synthesis are reviewed.