A new chiral liquid crystal with Schiff base group has been prepared. The struc ture of liquid crystal was confirmed by elementary analyses and  ̄o 1H NMR. Its phase transi tion was investigated by polarized optical microscope , DSC and temperature-depending FTIR spectra.The results showed that the chiral Schiff base showed monotropic phases behavior in certain temperature range, the phase sequence is I-N-S_B-S_G-K on the cooling sequence.