CORBA (Common Object Request Broker Architecture) is a distributing account software system which based on the object technology. The CORBA mainly includes three parts: that is Interface Definition Language (IDL), Object Request Broker (ORB), and Internet Inter-Orb Protocol (IIOP). The central and most important part of CORBA is ORB. The theory and frame of CORBA are introduced in this paper, and the basic method of software exploitation using omniORB is also presented.