Integration of the distributed business process is a hard task within the enterprise. It has a very high cost for the integration between enterprises. There is still a lot of work to do in order to simplify coordination of business process within or between the corporations in essence. XML has broad prospects in e-commerce application, promoting the development of distributed business processes to some extent. In many XML-related technologies, XML-based Simple Object Access Protocol (SOAP) and WEB services technology is particularly prominent. Using XML and related standards and technologies, combined with e-commerce security and other available technologies, the paper established WEB services for SOAP as the media. It proposed economical, compatible, extensible and safe e-commerce data integration scheme, so as to deal with the problems in E-commerce data integration for enterprises.