Abstract: Web services based application supporting environment(WebSASE)is a set of software, which can interact with each other to build an environment for Web services applications deployment, running, monitoring and management. The platform adopted the layered design method. Key runtime environment, dynamic services deploying and plug in style in resources management are three characters in the platform architecture. The platform consists of four key components, such as information portal, workflow system, application supporting services and security control mechanism,which can provide an application framework for Web services based internet software.