Grey interrelation analysis method was used to study the correlation of Al-anode elements and its galvanic efficiency at 20 ℃, 40 ℃ and 60 ℃. Twenty-eight kinds of Al-anodes were made for experiments by the method given by Chinese National Standard GB494885 [1] and the correlation degree of elements added in the anodes were calculated. The results showed that the order of elements affecting galvanic efficiency at different temperature is basically the same, and the correlation degree can reflect the variation of Al-anode galvanic efficiency when changing temperature. It is suggested that the elements being added in Al-anode are Zn, In, Ga, Mg.
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