In order to manage the battlefield electromagnetic spectrum resource effectively, the paper gives out the architecture of the decision support system, which accords with the actual requirements, based on the analysis of the primary characteristics of battlefield electromagnetic spectrum management decision support system. Introduces a basic concept of battlefield electromagnetic spectrum management decision support system, and discusses the architecture of battlefield electromagnetic spectrum management decision support system after introducing its primary characteristics, and lastly analyzes some pivotal problems of constructing battlefield electromagnetic spectrum management decision support system. The research can provide references for the man who engaged in electromagnetic spectrum management and interrelated technical personals.