The electrical conductivity and thermoelectric power (TEP) of the pristine pyrolyzed polyacrylonitrile(Pyro PAN) as well as the pristine and the FeCl 3 doped polyacenic materials have been measured. The results for Pyro PAN are somewhat complicated, which depend on the pyrolysis conditions and aging time in the air after the pyrolysis. Some samples show the nearly zero TEP value and the temperature independent TEP in a wide region of temperature is observed, which may indicate the strongly correlated system. But the change of TEP in time sequence means that the system is metastable. The values3of room temperature conductivity vary from ∼ 0.1 to 90 (S/cm), and the weak temperature dependence monotonously decreasing upon cooling with σ(30K)/ σ(290K) = 0.7 ∼ 0.8 is observed. The conductivity measurement of the pyrolyzed polyacenic materials of T p = 500° C indicates that the conduction mechanism of this material can be explained by the variable range hopping model. And the conductivity of T p = 700° C sample indicates that it is much more carbonized.