Abstract: The chiral monomer 1-O-(hendecene)-β-D-tetraacetyl glucopyranose (M1) and liquid crystal monomer cholesteryl 4-allyloxybenzoate (M2)were grafted onto the backbone of polymethylhydrosiloxane (PMHS). The mesomorphic properties of the series of cholesteric liquid crystalline polymers P1-P7 containing different molecular fractions of M1 from 0 to 30% were investigated by means of FTIR, ¹HNMR spectra, SROT, DSC, POM, TG and X-ray. Experiment results showed that P1-P7 are thermotropic cholesteric liquid crystal polymers and that tg and ti decrease with the increasing content of M1 in the polymers and the mesomorphic temperature ranges of the polymers are broader. The thermal stability of the polymers are about 300°C with only 5wt% lost.