Carbon nanotubes (CNTs) had good field emission ability and were adopted to form the cold cathode. The backlight field emission unit (BFEU) with CNTs as field emitter was designed and fabricated, and the detailed manufacture process was also given. The flat soda-lime glass was used as substrate plate. With the photolithography process, the indium tin oxide thin film covered on the cathode plate surface was divided into bar stripes to form the meshy bottom electrode for improving the field emission properties of CNT emitters. The sealed BFEU demonstrated better field emission performance, high luminance brightness. With the simple fabrication process, the total manufacture cost was also low.