[en] In order to catalyse the oxidation of tritium gas safely, two new hydrophobic catalysts were prepared for the emergency disposal of tritium gas leakage by choosing two inorganic hydrophobic substances as carrier and Pt as active component. Under room temperature, the catalysed oxidation ratio of 3‰ (V/V) -1% (V/V) hydrogen gas in air is higher than 95%, the speed constant is higher than 2.0 s"-"1; under room temperature, conversion ratio of 0.3‰ hydrogen in air is higher than 90%, the speed constant is higher than 1.6 s"-"1. It can be concluded that the catalysts can be used to catalyse tritium waste gas oxidation. Furthermore, Pt- inorganic hydrophobic catalysts has obviously better Ⅱ catalysing ability than Pt-PTFE and lower ability than Pt-SDB in H_2-HTO isotopic exchange, because the pressure resistance of Pt-Ⅱ is much higher than Pt-SDB, it can be used to the CECE cell of heavy water detritium system. (authors)