Although information and Internet technology developed rapidly, how to realize flexible integration of enterprise application, and how to realize coordination of the heterogeneous information system and automation of the business process, have been core issues that need to be further researched. Application of Web Services and WS-BPEL can solve this problem. By using Web Services, which is platform-independent and loosely coupled, business process can be adapted to rapidly changing environment. On the other hand, BPM combination of services for process planning and management can further improve business efficiency and lower development cost. In this paper, based on the web services and WS-BPEL, utilizing a typical commercial model, the web services of business process are developed, and the method of using WS-BPEL for process planning is explored. At the same time, web services orchestration is fulfilled through the WS-BPEL, commercial model of process automation instance is established. In the end, business process automation is implemented and tested accordingly.