A liquid crystal display and a manufacturing method thereof. The liquid crystal display includes a frame, a liquid crystal display module, and an adjusting member. The liquid crystal display module is disposed within the frame. The adjusting member is disposed between the frame and the liquid crystal display module so that the liquid crystal display module can be positioned at a predetermined position within the frame. The thickness of the adjusting member is varied according to the size of the liquid crystal display module so that the liquid crystal display module is securely disposed within the frame. Furthermore, the manufacturing method includes the following steps. A frame, a liquid crystal display module, and an adjusting member are provided. Then, the adjusting member is disposed on the frame, and the liquid crystal display module is then disposed on the frame.