Flexible wood slices were treated by in-situ polymerization of conducting polymers for developing conductive materials. Two kinds of conductive materials, such as wood slice/PPy and wood slice/PANi, were prepared and their microstructure and electrical properties were evaluated. The results showed that the PPy nanoparticles or PANi nano-rods were attached to the surface of the wood slices. With extending the polymerization time, the mass loading of the conducting polymer and conductivity of the slices increased. Bending angles had little effect on the conductivity of the slices. As a flexible electrode material, it showed stable conductivity with application potentials.