The effect of an external electric field on the photopolymerization rate of chiral liquid crystalline 4-acryloyloxy-undecanloxy-4’-[S(-)-2-methylbutyloxy]-biphenyl (monomer (I)) was studied using FT-IR. The orientation behavior of the thermally polymerized polyacrylate of monomer (I) under an electric field was observed by POM. The results showed that in-situ photopolymerization of the oriented monomer (I) under the application of an electric field proceeded at a higher rate than in the absence of an electric field and can fix mesogenic orientation.