Liquid crystal composition and liquid crystal display element or liquid crystal display containing liquid crystal composition

The invention discloses a liquid crystal composition and a liquid crystal display element or liquid crystal display containing the liquid crystal composition. The liquid crystal composition is prepared from a compound with the structural formula I (please see the formula in the specification), a compound with the structural formula II (please see the formula in the specification) and a compound with the structural formula III (please see the formula in the specification). The liquid crystal composition is prepared by mixing a series of liquid crystal materials of various structures, and therefore the liquid crystal composition has low viscosity and can achieve rapid responses; meanwhile, large dielectric anisotropy delta sigma and large optical anisotropy delta n are achieved; the small box thickness design can be achieved, rapid responses are achieved, a small viscosity-elasticity ratio is achieved, high optical and thermal stability is achieved, and the liquid crystal display element or liquid crystal displ