The BiFeO3 was prepared by a mixed oxide, solid-state reaction method. Excess Bi2O3(1–7wt%) was introduced prior to powder calcination to compensate for any Bi2O3thatmayhavebeenlostfromthesamplesduetovolatilizationduringheattreatments.Variousheating rates (1–10◦C/min) were performed at the calcination state. X-ray diffractionanalysis revealed that pure phase BFO was observed for the samples calcined at alow heating rate (1◦C/min) and contained lower amount of Bi2O3.The higher levels ofexcess Bi2O3produced an increased in dielectric constant and dielectric loss. Further,ferroelectric behavior was improved for higher amount Bi2O3contented samples.KeywordsBismuth iron oxide; excess bismuth oxide; electrical properties