The development of earth‐abundant, economical and efficient photocatalysts to boost water splitting is a key challenge for the practical large‐scale application of hydrogen energy. Herein, we report that the enhanced photocatalytic activities of g‐C3N4 loaded with different tungsten compounds (W2C, WS2 and W2N). We find that the W2C/g‐C3N4 displays the highest activity for photocatalytic reaction with a H2‐evolution rate of up to 98 μmol/h as well as remarkable recycling stability. We show that the excellent photocatalytic activity of W2C/g‐C4N3 is attributed to the suitable band alignment in W2C/g‐C4N3 and high HER activity of W2C co‐catalyst, which promote the separation and transfer of carriers, and hydrogen evolution on surface. Our findings demonstrate that the W‐based carbide as co‐catalyst for photocatalytic reaction is more active than its sulfide and nitride, paving a way for further designing novel and efficient carbides as co‐catalysts for photocatalysis.