Over last 50 years, there have been innumerable article and scientific papers which address the design and performance of Head mounted Display systems and Head up Display system. With the fielding of the various military and civilian system, research within this area has accelerated greatly since the mid of 1980's. This project intends to the design of Head up Display system. First we focus that what is HUD and its requirement in army and civilian aviation. HUD device including a display element arranged to be mounted in front of the user instantaneous field of view and display controlling unit disposed remotely from the display element and coupled thereto by a signal transmission apparatus.