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It was reported that many compounds VO cores-containing complexes could catalyze theoxidation of various organic compounds by addition of H202 through Fenton-like pathw-ays. Moreover，vanadium（V)could combine with iron ion to form the rather stablesol-id substances in acidic condition. Therefore，there is a possibilitythat the copoun-dscontaining iron ion and V anion may be employed as the two-way Fenton-like hetero-geneous catalysts. A simple Fe-V compound，FeV04，was selected as the first exampleof the potentialtwo-way Fenton-like catalysts in our project. This contribution wasmainly focused onthree aspects:（i) the catalytic performance of FeV04,（ii) stabil-ity of FeV04,（iii) thecatalytic mechanism of FeV04. In addition，Orange II was sel-ectedas a modelcontaminant. The experimental results showed that FeV04 could effectivelycatalyze H202 to generate active hydroxyl radical -OH both in dark and underillumination. Therefore，it was employed as a heterogeneous Fenton-like andphoto-Fenton-like catalyst in the present contribution. Compared with theconventional heterogene-ous Fenton-like catalysts，α-Fe203，Fe304 and γ-Fe00H,FeV04 possessed a much high-er catalytic activity. The high catalytic activity possiblyinvolved in a special tw-o-way Fenton-like mechanism，that is，the activation of H202by both Fe(Ⅲ) and V(V)inFeV04,and in a semiconductor photocatalysis towardsthe activation of H202 and reduct-ion ofFe(Ⅱ) to Fe(Ⅱ)，as shown as the followingfigure。