Side-Chain liquid crystalline polymethylsiloxane containing 4-(4’-undecylenoyloxy) benzoyl amino benzo-15-crown-5 used as stactionary phase for capillary gas chromatogrophy was synthesized. The polymer showed nematic phase. The main chromatographic characteristics, including polarity and selectivity, were examined. The results showed the side-chain liquid crystalline polymethylsiloxane containing benzo-15-crown-5 stationary phase possessed the behaviours of liquid crystal staionary phase.