PROBLEM TO BE SOLVED: To provide a pretreatment method for gold ore improving pretreatment for wet treatment of recovering gold from gold ore containing iron pyrite and capable of contributing to the improvement of the recovery rate of gold in wet treatment, and a method for recovering gold from iron pyrite.SOLUTION: Provided is a pretreatment method for gold ore being the one performed prior to the recovery of gold containing iron pyrite by wet treatment, where, when gold ore is heated in an inert atmosphere, and iron pyrite in the gold ore is thermally decomposed into iron sulfide (II) and elemental sulfur, using a rotary kiln 1 having a heating zone 2 of heating gold ore while being passed through the same, the flow of an inert gas contacted with the gold ore is made into a counter flow reverse to the progressing direction Dm of the gold ore in the heating zone 2 of the rotary kiln 1.SELECTED DRAWING: Figure 1
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