Abstract: With the chiral monomer mono-(6-acryl ethylenediamino-6-deoxy)-β-cyclodextrin twenty acetate(M1) and liquid crystal monomer 4-[(p-undecylen-1-yloxy) benzoyloxy]-4'-(p-ethoxy) benzoyloxy biphenyl ester(M2) both grafted onto the backbone of polymethylhydrosiloxane, a new kind of liquid crystalline polymers P1~P7 containing β-cyclodextrin was prepared. Their structures and properties were characterized with FT-IR, ¹HNMR, DSC, POM, TG, X-ray and SROT. The results showed that M1 is a chiral non-mesogenic monomer whose optical rotation is +95.30 and M2 presents a threaded texture of the nematic phase, while P1~P7 are thermotropic liquid crystalline polymers with high thermal stability and 5% heat loss about 300°C. With increasing M1 content in the polymers, the liquid crystal phase is shortened and specific opticity is increased.