A liquid crystal display and adjustable support thereof. The liquid crystal display includes a display panel, a moving assembly and a locking assembly. The moving assembly is connected to the display panel, and moves the display panel. The locking assembly is moveable between a first position and a second position. When the locking assembly is in the first position, the moving assembly is abutted by the locking assembly so that the display panel cannot be moved by the moving assembly. When the locking assembly is in the second position, the moving assembly is not abutted by the locking assembly so that the display panel can be moved by the moving assembly.