High separation of photo-excited electrons and holes, leading to fast reaction rate on semiconductor surface, are determined for the hydrogen evolution by water reduction. We here provide the efficient photocatalyst of Au/SiC composite for hydrogen production, where the effect of localized surface plasmon resonance effect (LSPR) is firstly induced in the SiC-based materials for water splitting. The hydrogen production for Au/SiC is robustly increased by 30 times compared to that of pristine SiC. This high performance is attributed to the LSPR by Au nanoparticles, which results in the efficient charges separation across the Au-SiC interface and accelerated water reduction rate on SiC surface by the hot electrons in conduction band of SiC. We show that the Au/SiC is an effective photocatalyst, which is capable of splitting water for hydrogen.