The Security Resolve Scheme for the Transportation System Based on Web Service WANG Shun yan,GAN Luo,SUN Xiong ying (School of Computer Science and Technology, Wuhan University of Technology, Wuhan 430070, China)With the fast development of web service technologies, the security requirements became more and more important. Firstly, this paper discussed several main security requirements such as data protection, certificates authorization, non repudiation and etc. Secondly, it put forward some corresponding method like the SSL(Secure Sockets Layer) transporting, digital certificate and Soap dsig according to the new WS security. Furthermore, it based on the practical case of transportation system in Enshi and worked out a complete resolution plan through with a clearer understanding about how to meet the requirements of secure communications in typical web services applications.web service; WS-security; digital signature; resolve scheme