A　poly(pyrrolyl　methane)　(Poly[pyrrole-2,　5-diyl(4-methoxybenzylidane)],　PPDMOBA)/multiwalled　carbon　nanotubes　(MWNTs)　composites　are　fabricated　by　in　situ　chemical　polycondensation　of　pyrrole　and　4-methoxybenzaldehyde　on　MWNTs.　The　structure,　morphology,　thermal　stability　and　electrical　property　of　the　resulting　composites　are　investigated　via　fourier　transform　infrared　(FTIR)　spectroscopy,　X-ray　diffraction　(XRD),　thermogravimetric　analysis　(TGA),　field　emission　scanning　electron　microscopy　(FESEM),　transmission　electron　microscopy　(TEM)　and　a　four-probe　method.　The　electrochemical　performance　of　the　composites　is　determined　in　a　three-electrode　system　using　cyclic　voltammetry　(CV),　galvanostatic　charge-discharge　(GCD)　and　electrochemical　impedance　spectroscopy　(EIS)　techniques.　FTIR,　FESEM　and　TEM　confirm　that　the　composites　have　been　successfully　prepared,　and　PPDMOBA　is　uniformly　dispersed　in　MWNTs.　Electrical　conductivity　of　PPDMOBA/MWNTs　composites　is　1.39　S　cm-1,　which　is　significantly　larger　than　that　of　pristine　PPDMOBA.　The　specific　capacitance　and　charge　transfer　resistance　of　the　composites　is　56　F　g-1　(1　mA　cm-2)　and　0.3Ω,　respectively.　©　World　Scientific　Publishing　Company.