With　the　rapid　development　of　global　information　technology,　data　resources　play　an　increasingly　prominent　role　in　society.　Countries　have　issued　＇smart　city＇　strategic　plans　one　after　another,　taking　the　sustainable　construction　of　smart　cities　as　an　important　means　to　enhance　national　competitiveness　and　seize　the　commanding　heights　of　the　new　round　of　the　information　technology　revolution.　This　paper　selects　southern　Fujian　for　experiments　to　develop　modern　communication　methods　in　some　areas　of　China　that　have　not　undergone　smart　city　upgrades.　First,　the　animation　immersion　method　under　smart　city　technology　is　taken　as　the　starting　point.　The　folk　culture　of　southern　Fujian　is　integrated　to　analyze　the　importance　of　developing　the　smart　city　community　under　big　data.　Second,　a　combined　system　dynamics　model　and　structural　equation　modeling　are　established.　It　is　applied　to　intelligent,　sustainable　urban　construction　to　explore　the　possibility　of　new　development　paths.　The　cities　that　apply　the　model　proposed　here　for　intelligent,　sustainable　construction　have　increased　their　output　value　in　all　aspects　within　five　years.　The　maximum　annual　growth　rate　has　reached　17.11%.　Planners　and　designers　base　the　smart　city　community　environment　on　animation　immersion　technology.　From　the　perspective　of　animation　immersion　planning,　integrating　the　animation　immersion　technology　of　southern　Fujian　folk　culture　into　the　sustainable　construction　and　development　of　the　smart　city　community　environment　will　help　enhance　the　comprehensive　competitiveness　of　the　region.