Bismuth vanadate is one of the environmentally benign substitutes for conventional inorganic pigmentscomposed of heavy metals. The effect of process parameters on the physical properties of bismuth vanadate pigmentprepared from aqueous solutions of potassium vanadate and bismuth nitrate were experimentally examined. Two aque-ous solutions were fed into precipitation chamber at the same flow rate, and precipitates were formed at primary pH of4.5 and secondary pH of 7.0~7.5. After aging for 3 hours in reaction mixture, 3 hours’ calcination at 400°C gave bis-muth vanadate pigment with a good color and hiding power. Increase in molybdenum concentration in reaction mixtureincreased the hiding power of the pigment, but the other minor constituents had minor effect on the physical propertiesof the pigment.