The invention provides a liquid crystal display panel and a quantum rod polaroid manufacturing method. The liquid crystal display panel comprises a built-in quantum rod polaroid, quantum rods in the quantum rod polaroid are directionally arranged in the same direction, and therefore polarizing effect is achieved, a lower polaroid is saved, the penetration rate and the brightness of the liquid crystal display panel are greatly improved, at the same time, the quantum rods emit linearly polarized light under optical excitation, and therefore the display colour gamut of the liquid crystal display panel is increased. The quantum rod polaroid manufacturing method comprises that firstly, a reaction film containing action groups is formed on a substrate, then a layer of quantum rod film is formed on the reaction film, surface groups of the quantum rods which are subjected to surface modification and the action groups of the reaction film form binding bonds or an adsorption force, and the quantum rods flatly lie on the substrate, the quantum rods can rotate under the effect of an electric field and are directionally arranged, and therefore the quantum rod polaroid having the polarizing effect is formed.