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我国铝土矿的成矿物质有来自古陆，有的与基底有关，也有两者兼之。成矿时的地理位置则多处于北纬２０°以南。现位于北纬的南天山铝土矿，当时也处于１０°～１３°。成矿作用有红土化、还原作用、变质作用、表生作用和酸化作用等。铝矿物的形成途径有由高岭石脱硅形成的，有从三水铝石脱水形成一水铝石的，有从长石和辉石类直接变为三水铝石的，有从铝真溶液重结晶而成的。在探讨铝土矿成矿因素的基础上，对铝土矿的成因划分为五大类，即Ⅰ红土－沉积－红土型，Ⅱ红土－沉积型，Ⅲ钙红土型，Ⅳ岩溶堆积型，Ⅴ红土型。而前两类与前人的分类有所区别。
China’s bauxite ore-forming substances from the ancient land, and some related to the substrate, but also both. At the time of mineralization, the location was mostly south of latitude 20 °. Now located in the northern latitude Tianshan bauxite, was also at 10 ° ~ 13 °. The mineralization is lateritic, reduction, metamorphism, epigenetic and acidification. The formation of aluminum minerals formed by kaolinite desiliconization, dehydration from gibbsite to form diaspore, from feldspar and pyroxene directly into gibbsite, from the aluminum solution really Recrystallization made. On the basis of discussing the metallogenetic factors of bauxite, the genesis of bauxite is divided into five categories, that is, the laterite-sedimentary-lateritic type, the second laterite-sedimentary type, the laterite type Ⅲ, the laterite Ⅳ type, type. The first two categories differ from the previous classification.