The invention relates to a method for eliminating aluminum cell corner leg hypertrophy, and relates to the technical field of electrolytic cell repairing. The method for eliminating the aluminum cell corner leg hypertrophy includes the following steps that a, a heat anode scrap is used for exchanging out the leg hypertrophy position; b, aluminum fluoride is added into an electrolyte of a machining face between the heat anode scrap and a crusting layer; c, a heat preservation material is added on the surface of the electrolyte; and d, after the aluminum cell runs for 5 days to 10 days, the step a to the step c are repeatedly executed until legs are fused. By means of the method, the legs are fused, the effect is good, and changes of a hearth are avoided.