The method of the applications integration techniques for CAE in PLM system of integration platform for enterprises was analyzed. According to the characteristics of CAE data formed, a practical integration framework for CAE application in PLM environment was established, in which data interaction between PLM and CAE systems was achieved by using services of transparent message broker, so as to ensure the accuracy, consistency, security and traceability of the data between the bidirectional interaction. An effective way of achieving data integration at enterprise level is explored, and a solution for system integration is proposed, which is verified in application.