Control technology of aeroengine has made remarkable development in recent 20 years. In order to meet the needs of high performance, high precision propulsion system control, based on computer technology, microelectronic technology and control theory, the control technology is from traditional hydraulic mechanical control to digital electronic control. Digital electronic control has been a huge success from limited function to the full authority control and from the development test to practical application. In the future it will have more widely application and development in the field of military and civilian aircraft control. This paper mainly discusses the full authority digital electronic control. It shows that the digital electronic engine control has wide application prospect and high application value.