Intelligent unmanned system is one of the important means to seize the information advantage, implement the precision attack and complete special combat tasks in information war. It is also a multiplier of future military forces. How to apply emerging technologies to improve the effectiveness of intelligent unmanned systems in future combat scenarios is one of the important research directions. The relevant background of intelligent unmanned system is introduced. The edge computing technology and its advantages in intelligent unmanned system are analyzed, and then the problems during the application of edge computing technology into intelligent unmanned system are modeled and solved. The effectiveness of the algorithm is verified by simulation experiments.