1. A method for Web service information management in a service-oriented architecture application, comprising: intercepting a service request message issued by a Web service requester for a Web service in response to executing said service-oriented architecture application on the Web service requester side; adding a tracing header in the service request message for requesting the detailed runtime information of the Web service and sending the message to the Web service provider side; intercepting the service request message coming from the Web service requester on the Web service provider side; tracing detailed runtime information based on the tracing header for requesting the detailed runtime information in the message during the execution of the Web service with respect of the service request message; and adding an acknowledgement tracing header containing the traced detailed runtime information into the response message to be returned to the Web service requester by the Web service provider and returning the message to the Web service requester.