The invention discloses a method for removing aluminum of aluminum powder vanadium-removing crude titanium tetrachloride mud, and belongs to the technical field of metallurgy. In order to solve the the technical problems of a high content of aluminum impurities, a low separation efficiency of the aluminum impurities, high energy consumption, large environmental pollution and the like of existing aluminum powder vanadium-removing crude titanium tetrachloride mud, the invention provides a method for removing aluminum. The method comprises the steps: adding water to the aluminum powder vanadium-removing crude titanium tetrachloride mud for hydrolysis, performing first sedimentation after the hydrolysis, performing stratification so as to obtain a supernatant liquid and bottom concentrated mud, performing second sedimentation on the supernatant liquid obtained from the first sedimentation, performing stratification so as to obtain low-aluminum TiCl4 and bottom concentrated mud, and performing tubular filtration or slurry evaporation treatment on the bottom concentrated mud according to different solid content. A combined process including hydrolysis, first sedimentation, second sedimentation, tubular filtration and slurry evaporation is performed on the aluminum powder vanadium-removing mud, the aluminum impurities in the mud maximally are separated maximally, and titanium tetrachloride in the mud is recovered.