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In the present study, a series of Ir‐based catalysts, supported on Al2O3, ZrO2, CeO2, and CexZr1‐xO2, are investigated for the production of hydrogen by the high temperature steam reforming of methanol (SRM). Results show that CeO2 and CexZr1‐xO2 can promote the CO water gas shift (WGS) reaction, which is involved in the SRM network. Ir/CeO2 exhibits a better initial methanol conversion and its stability can be enhanced by the addition of ZrO2 to CeO2. The TPR and XRD characterization of the CeO2‐ZrO2 mixed oxides shows that Ce0.5Zr0.5O2 is the optimum support in maintaining catalyst activity, as well as stability. The addition of the precious metal Pt to Ir/Ce0.5Zr0.5O2 demonstrates a synergistic effect and can obviously increase the selectivity of H2. In the meantime, the CO content in the reformate products decreases from 9 mol‐% to 6 mol‐%. Under the conditions of H2O/CH3OH=1.5 (molar ratio), LHSV=2.5 h–1, and a reaction temperature of 400 °C, a 92% methanol conversion is obtained during a 200 hour test on a 0.3%Ir‐0.3%Pt/Ce0.5Zr0.5O2 catalyst and the stability is better than that of a commercial copper‐based catalyst.