PROBLEM TO BE SOLVED: To provide a method for producing anα-amino acid metal phosphate which has an excellent deodorizing function and excellent heat resistance. SOLUTION: This method for producing the amino acid metal phosphate comprises adding anα-amino acid or its salt and one or more salts selected from the chloride, sulfate and nitrate of a divalent metal to a strongly acidic aqueous solution of ferric ion, stirring the mixture to dissolve the compounds, and further adding a phosphate aqueous solution to the solution. One mole of theα-amino acid or its salt is mixed with 0.08 to 0.66 mole of the ferric compound, 0.5 to 2 moles of the divalent metal compound and 0.2 to 2 moles of the phosphate.
