The paper briefly introduces the concept and characteristics of EJB.By systematiocal discussing the principle the analysis system of real cost in power plant,the paper how EJB applies in analysis system of real time cost in power plant.

• 简要介绍了EJB的概念及其特性,探讨了电厂实时成本分析系统的原理,展示了EJB技术在开发电厂实时成本分析系统中的应用。