In this study Polycarbonate (PC)/ Poly (Vinylidene Fluoride) (PVDF) (50/50 w/w) blend nanocomposites containing 0-3.2 wt. % of MWCNTs were prepared via melt mixing. The Electrical and Dielectric properties of samples were measured in the frequency range of 10-1-106 Hz. The results showed a co-continuous morphology for this blend and localizing the MWCNTs in the PC phase, which is due to the more attendance of nano tubes to this phase. In the other hand, it was found that by controlling the kinetic parameters including the sequence of feeding, the CNTs were forced to localize in the thermodynamically unfavorable PVDF phase. This was evidenced by rheological results like relaxation time spectrum. The results of AC conductivity measurement revealed the much higher dielectric constant for these nanocomposite samples compared to those ones which the MWCNTs were localized in the PC phase. This was explained in terms of beta crystalline phase of PVDF and higher dielectric constant of it.