Abstract：Photocatalytic fuel cell （PFC） which exploits sunlight as energy source， could realize efficient pollutants degradation by utilizing the semiconductor excitation and obtain electric energy by deriving the electrons originated from the catalytic process， solving the environmental problems and energy crisis. In this paper， the hot steam condensation and spin coating method were used to prepare electrode materials based on net-like carbon nitride （g-C3N4） on which WO3 nanosheets were loaded. In a double-chamber H-type electrolytic cell， the g-C3N4/WO3-Pt PFC system was constructed by utilizing the prepared g-C3N4/WO3 as photoanode， Pt sheet as cathode， as well as using tetracycline hydrochloride （TCH） and Cr（VI） as the target pollutants in anode and cathode compartments， respectively. After 240 min irradiation， the removal rate of TCH and Cr（VI） are 79.1% and 91.3%， respectively， and the maximum power density is 6.70 μW·cm-2. The high reactivity come from： ①both the narrow band gap semiconductors g-C3N4 and WO3 are excited and thus increase the light utilization efficiency； ②the Z-scheme heterojunction between g-C3N4/WO3 not only improves the separation efficiency of photogenerated carriers in catalyst， but also maintains the high conduction band of g-C3N4 and the low valence band of WO3 to the greatest extent， which is essential for PFC to achieve efficient electron export and pollutant degradation； ③the network structure of g-C3N4 and the nanosheet structure of WO3 facilitate the contacting of catalyst with photons and pollutants.