Grid was a kind of new-type network computing platform following World Wide Web;An infrastructure of sharing different resources including webpage in an all-round way was offered.In order to complete one task

many re-sources were often needed the participants to assort with

so single sign-on to simplify users’ operations was needed.The disadvantages of single sign-on were analyzed

and a solution based on SAML was proposed

the test and the perform-ance evaluation to it had been carried on.