The　emergence　kinds　of　Web　applications　offer　flexible　and　convenient　service　for　users.　Though　the　sites　declare　they　won＇t　disclose　users＇　privacy　without　user＇s　agreement,　users　may　receive　some　spam　after　registered　in　or　interacted　with　some　sites.　That　is　clearly　that　some　sites　disclosed　user＇s　privacy　such　as　preference　with　user＇s　email　address　to　the　third　party　by　their　commerce　interests.　So　find　out　the　privacy　disclosure　site　is　meaningful,　and　then　user　can　change　interaction　pattern　or　adjust　trust　with　the　site　even　resort　to　law.　In　this　paper,　we　propose　a　novel　approach　for　tracking　privacy　disclosure　in　which　we　introduce　an　analysis　center　with　our　analysis　algorithm　to　solve　this　issue.　Our　main　contributions　include　(1)　our　method　can　find　out　privacy　disclosure　site　easily　and　(2)　the　privacy　disclosure　site　is　hard　to　deny　that　it　has　disclosed　user＇s　privacy.　Simulation　results　show　our　method　can　tracking　privacy　disclosure　site　well.