Abstract: Iron arsenate precipitation method has been used to remove the arsenic from vanadium and chromium solution with concentration of 30% H₂O₂ as oxidant，Fe₂（SO₄）₃ for arsenic removal agent.The results showed that:with the initial reaction pH=3.0，n(Fe)/n(As)=5，at reaction temperature of 40 ℃for 2 h，arsenic removal rate of chrome and vanadium solution can reach 92.07%，both vanadium and chromium loss rate is under 5%.Chrome vanadium solution obtained by the optimum condition via concentrated sulfuric acid hydrolysis，the hydrolysate precipitation filtration after adding ammonium sulfate purification，purification products calcinated in the muffle furnace at temperature of 500 ℃ for 3 h，the final powder V₂O₅ can satisfy YB/T 5304-2011 in the brand V₂O₅ 98 quality requirements.

Key words: Vanadium and chromium solution, Iron arsenate, Arsenic removal rate, V₂O₅