Novel conjugated carbazole polymers based on the alkyne-linked 1,8-carbazole structure are synthesized in high yield by the Sonogashira cross-coupling reaction and acetylenic oxidative coupling reaction. The polymers are thermally stable and highly soluble in common organic solvents such as CHCl3, CH2Cl2, and THF. As compared to ethynylene-linked polymer, the butadiynylene-linked polymer display a bathochromic shift in the absorption maximum and end absorption position. In addition, the fluorescence behaviors in CH2Cl2 are almost identical for both polymers. Electrochemical measurements indicate that the ethynylene-linked polymer possesses a lower first oxidation potential than the butadiynylene-linked one.