H2 sensors with rapid response at near-ambient temperature are ideal for application in explosion risk environments. Bimetallic catalysts are attractive in the field of superior properties gas sensing owing to their cooperative effects. This work synthesized [email protected]/SnO2 hybrids via a facile wet chemical method for H2 sensing at near-ambient temperature. The sensing experimental results showed that Pd1 @Pt/SnO2 possessed the highest response (785.15) to 1000 ppm H2 at 50 °C and a short response/recovery time (1/9 s). Notably, the prepared Pd2 @Pt/SnO2 presented a rapid response/recovery time (1/31 s) at 25 °C. Up to now, the [email protected]/SnO2 synthesized in this work displayed the fastest response at near-ambient temperature among those bimetal-decorated metal oxide semiconductor H2 gas sensors. The excellent sensing capabilities of [email protected]/SnO2 to H2 were due to the cooperative effects of [email protected] alloy caused the low activation energy, high oxygen species content, high resistance modulation and strong chemical sensitization. The [email protected]/SnO2 sensor has great potential advantage in rapid detection of H2 at near-ambient temperature.