The invention provides a liquid crystal display panel. The liquid crystal display panel comprises an array substrate, a color filter substrate and a liquid crystal layer arranged between the array substrate and the color filter substrate; the array substrate comprises display area wires, pixel electrodes, a first common electrode and non-display-area wires; the color filter substrate comprises a second common electrode and an isolation electrode, and the second common electrode and the isolation electrode are insulated from each other. The invention further provides a liquid crystal display device. By means of arrangement of the isolation electrode, the liquid crystal display panel and the liquid crystal display device have the advantages that misconnection between the display area wires of the array substrate and the second common electrode of the color filter substrate can be avoided effectively, and the display quality of the liquid crystal display panel is improved.