To improve the visualization,the stability and reliability of the aerospace optoelectronic reconnaissance platform in the complicate environment,a embedded system is designed based on WES.This system combines PIII CPU hardware with WES,card driver,CCD image acquisition unit and distributed data communication part.Using NHPP mathematic model,the stability and reliability of the system are analyzed.The results show that with the same hardware configuration,embedded system design of aerospace optoelectronic reconnaissance platform based on WES can effectively shorten the system′s start time by 15% compared with the previous system.The stability and the reliability is increased up to 94%.