A method for making a liquid crystal display screen includes the following steps. Firstly, providing a base including a surface. Secondly, forming carbon nanotube structure on the surface of the base to obtain a first electrode plate preform, the carbon nanotubes of each carbon nanotube structure being oriented along the extending direction thereof. Thirdly, forming a fixing layer to cover the carbon nanotube structure, thereby obtaining a first electrode plate. Fourthly, repeating the above-described steps, thereby obtaining a second electrode plate. Lastly, forming a liquid crystal layer between the fixing layers of the first electrode plate and the second electrode plate, the carbon nanotubes of the first electrode plate being perpendicular to that of the second electrode plate, thereby forming the liquid crystal display screen.