Liquid crystal compound including polyfluoroindan, composition thereof and application

The invention provides a liquid crystal compound including polyfluoroindan and a liquid crystal composition including the liquid crystal compound and application thereof. The liquid crystal compound is represented by a general formula I as described in the specification, has great optical anisotropy, low rotary viscosity, a high clearing point and a wide nematic phase temperature range and enables a display using the compound to have a fast response speed and a wide working range and to be capable of good displaying in a variety of environments. The liquid crystal composition is a novel negative dielectric anisotropy liquid crystal composition with a high clearing point, great refraction anisotropy, small rotary viscosity and great dielectric anisotropy. The invention further provides a liquid crystal display element including the liquid crystal composition.