Due to historical reasons, business process management systems of domestic enterprises are fragmented in most cases, it is difficult to share data, information, processes, services, and can not support end to end processes cross-system. In order to address the difficulties of achieving the compound process across multi-system and multi-sector, based on SOA design cross-system process integration platform solutions for enterprise information are described in detail according to the current mature technology. Then the design ideas of the platform structure are given, through which data services and business process services can ultimately be shared.