γ?Al2O3 is widely used as catalyst carrier in petroleum processing realm, owing to its porosity, high dispersibility, adjustable surface acid/base characteristics, attractive mechanical properties and good thermal stability. As the quality of crude oil is increasingly heavy and inferior, more and more attention has been paid on the preparation of macro-mesostructured γ?Al2O3 since the γ?Al2O3 as the catalysts carrier, that used in the heavy oil processing, such as fixed-bed residue hydrotreating or RFCC, need more meso-and macroporous structures to reduce the internal diffusion resistance of large molecules and improve the catalytic activity. Commonly, pseudoboehmite as the raw materials turns decisive significance for the physiochemical properties of γ?Al2O3. For instance, the pore properties of γ?Al2O3 are greatly in?uenced by the size and morphology of pseudoboehmite crystallites and their aggregation. This manuscript thus reviewed the representative preparation methods of pseudoboehmite including precipitation method and aluminium alkoxide hydrolysis method. The advances of Al2(SO4)3?NaAlO2 method and carbonization method, as two main industrial technologies, were emphatically introduced. New reactors and technologies for the precipitation were developed in order to provide su?cient mixing intensity and recirculation of different reactants, which could bring about a homogeneous supersaturation distribution in the instantaneous neutralization reaction, and then lead to uniform crystallites size, thereby pseudoboehmite with large pore volume and narrow pore size distribution. Besides, the relative meso??and macroporous structures control technologies were also highlighted, such as pH swing method, pore-enlarging additives method, and hydrothermal treatment method, etc. The advantages and disadvantages of these methods were also briefly analyzed. At last, the development trend was introduced and some suggestions were proposed.