Cloud computing is providing a low cost on demand services to the users, omnipresent network,large storage capacity due to these features of cloud computing web applications are moving towards the cloud and due to this migration of the web application,cloud computing platform is raised many issues like privacy, security etc. Privacy issue are major concern for the cloud computing. Privacy is to preserve the sensitive information of the cloud consumer and the major issues to the privacy are unauthorized secondary usage, lack of user control, unclear responsibility. For dealing with these privacy issues Identity management method are used. This paper discusses the privacy issue and different kind of identity management technique that are used for preserving the privacy.