The　drinking　of　tea　has　gradually　become　the　world　trend　and　fashion,　the　constantly　expanded　demand　of　tea　stimulate　its　production,　and　the　economic　development　of　tea　has　drawn　the　world’s　attention,　but　the　influence　of　large-　scaled　and　specialized　tea　plangting　on　agriculture　ecosystem　didn’t　get　the　corresponding　focus.　In　order　to　study　the　ecological　effect　of　specialized　tea　planting　on　agricultural　ecosystem　with　the　expanded　planting　size,　we　chose　Anxi　that　a　county　with　specialized　tea　planting　as　a　case.　Evaluation　based　on　three　aspects　which　contain　different　specialized　tea　planting　level,　agricultural　planting　structures　and　geomorphic　types　through　the　method　of　emergy　and　the　building　of　agricultural　ecosystem　services　function　value　evaluation　index　system.　The　evaluation　index　system　including　positive　and　negative　services　of　the　provisioning,　regulating　and　supporting　function.　The　results　show　that　(1)　all　the　three　services　function　have　higher　value　on　positive　service,　and　the　agriculture　ecosystem　that　mainly　based　on　specialized　tea　planting　of　Anxi　give　priority　to　providing　positive　service;　(2)specialized　tea　planting　has　high　economic　benefit　and　well　gas　and　climate　regulation　ability,　which　has　a　positive　effect　on　the　agricultural　ecosystem’s　provisioning　and　regulating　services　function;　but(3)　soil　erosion　cased　by　specialized　tea　planting　is　a　little　serious,　which　has　a　negative　influence　on　agricultural　ecosystem　supporting　function;(4)　the　“tea-vegetation”　and　“tea-fruit”　multiple　ecological　planting　structure　is　conducive　to　improving　agricultural　ecosystem　services　function,　and　achieve　the　harmonious　development　of　the　tea　economy　and　agricultural　ecosystem.　©　2017,　Ecological　Society　of　China.　All　rights　reserved.