The invention provides a view-angle-switchable liquid crystal display device. The liquid crystal display device comprises a first substrate, a second substrate opposite to the first substrate and a liquid crystal layer located between the first substrate and the second substrate. A first electrode is arranged on the surface, facing the liquid crystal layer, of the first substrate. A second electrode and a third electrode are arranged on the second substrate. Liquid crystal molecules in the liquid crystal layer are negative liquid crystal molecules. The initial pretilt angles of the liquid crystal molecules, close to the second substrate, of the liquid crystal layer are larger than or equal to 30 degrees and smaller than or equal to 50 degrees. The liquid crystal molecules, close to the first substrate, of the liquid crystal layer are arranged in the horizontal direction. By means of the view-angle-switchable liquid crystal display device, switching between the large view angle and the small view angle can be achieved under the conditions that the thickness of the liquid crystal display device and the cost of a backlight device are not increased, and the aperture ratio is not sacrificed in a single panel.