The BiVO4 photocatalyst was fabricated through a facile hydrothermal method by using Bismuth nitrate pentahydrate (Bi(NO3)3·5H2O) and ammonium metavanadate (NH 4VO3) as the vanadium and bismuth sources. The bitmut octovanađat photocatalyst was prepared with the ratio between bismuth nitrate pentahydrate mass and ammonium metavanadate was 11, in the conditions of 2M nitrite acid aqueous at pH 9. The photocatalytic performance of synthesized BiVO4 material was evaluated by the degradation of rhodamine B (RhB) under visible light. Results show that the obtained photocatalyts can significantly enhance photocatalytic activity in comparison with other methods. This work may be useful for a facile way to synthesize the highly efficient photocatalytic systems for application in environmental treatment. Keywords Bismuth vanadate, hydrothermal method, photocatalytic activity, rhodamine B, visible light.