To investigate electroluminescent (EL) properties of a novel p-conjugated polymer, poly[N-(3,4-bis(decyloxy)phenyl)carbazolyl-2,7-vinylene)] (PCzV) was synthesized. The polymer is soluble in common organic solvents such as chloroform and chlorobenzene and could be easily spin-coated onto an indium-tin oxide coated glass substrate to obtain high quality optical thin films. The polymer has a weight-average molecular weight (Mw) of ca. 3.86 x 10(4) with a polydispersity of 1.60. The polymer light-emitting diodes (PLEDs) with a configuration of ITO/PEDOT:PSS/polymer/OXD-7/LiF/Al were fabricated. The maximum luminance and luminance efficiency showed 1207 cd/m(2) and 1.11 cd/A with CIE coordinate of (0.15, 0.27), respectively.