The invention provides a polymerizable compound shown as a formula I and a polymer composition of a polymerizable compound shown as a formula II. A liquid crystal composition formed by matching of thepolymer composition and specific liquid crystal components is especially suitable for a PSVA liquid crystal composition applied by a displayer or a TV and a PSA-IPS liquid crystal composition in an IPS mode, especially, the polymerizable liquid crystal composition has good solubility, the adjustable polymerization speed and the polymerized shape, a 'material system' formed by selected polymerizable components and the liquid crystal components has low rotary viscosity and good photoelectric performance and has the high voltage holding ratio (VHR) after (UV) light irradiation is adopted, and the problem that residual images and the like occur on the displayer finally is avoided.