Filled skutterudite compound PrFe4P12 has attracted much attentions because it exhibits anomalously phase transition from a heavy electron state to a non-magnetic ordered state below TA=6.5 K.Numerous experimental results and theoretical calculations suggested that the ordered state is a new type one in the Filled skutterudite compound PrFe4P12 has attracted much attentions because it exhibits anomalously phase transition from a heavy electron state to a non-magnetic ordered state below TA = 6.5 K. Numerous experimental results and theoretical calculations suggests that the ordered state is a new type one in the