Since　2005,　the　term　Web　2.0　has　gradually　become　a　hot　topic　on　the　Internet.　Web　2.0　lets　users　create　web　contents　as　distinct　from　webmasters　or　web　coders.　Web　2.0　has　come　to　our　work,　our　life　and　even　has　become　an　indispensable　part　of　our　web-life.　Its　applications　have　already　been　widespread　in　many　fields　on　the　Internet.　So　far,　China　has　about　137　million　netizens　[1],　therefore　its　Web　2.0　market　is　so　attractive　that　many　sources　of　venture　capital　flow　into　the　Chinese　Web　2.0　market　and　there　are　also　a　lot　of　new　Web　2.0　companies　in　China.　However,　the　development　of　Web　20　in　China　is　accompanied　by　some　problems　and　obstacles.　In　this　paper,　we　will　mainly　discuss　Web　2.0　applications　in　China,　with　their　current　problems　and　future　development　trends.