Abstract: It is an effective way to quickly create a simulation system,to integrate existing simulation software into HLA-based distributed simulation system and enable it become a reusable unit in the development of HLA federation.This paper discusses several HLA integration methods,and then suggests a general RTI packaging solution based on COM server component.Some key problems are solved,including the component interface design,data type conversion,and exception handling.The solution is verified by Visual Basic,Matlab.This solution extends the application domains of HLA.