To　protect　Chinese　ancient　buildings,damages　of　Chinese　ancient　wooden　buildings　caused　by　Wenchuan　earthquake　as　well　as　their　strengthening　techniques　were　studied　in　this　paper.According　to　survey　data,　damage　symptoms　such　as　basement　destruction,column　root　displacement,column　incline,tenon　pulled　out　of　mortise,decoration　member　damage,roof　truss　incline,tile　drop　down,filler　wall　collapse　and　so　on　were　summarized.Then　by　analyzing　main　causes　for　damage　of　Chinese　ancient　wooden　buildings　were　obtained:the　over　strong　seismic　forces,lacking　remedy　in　time,construction　problems,weak　strength　of　filler　material　and　so　on.According　to　symptoms　of　Chinese　ancient　wooden　buildings,strengthening　techniques　such　as　Dun-Jie,gluing,　iron　band　connection,additional　supports,　pour　strengthening,FRP　strengthening　and　so　on　were　put　up.Finally　Da-Xiong　Palace　in　Sichuan　province　was　taken　as　an　example　for　aseismic　analysis.Results　show　that　in　order　to　improve　aseismic　capability　of　Chinese　ancient　wooden　buildings,more　efforts　are　needed　to　maintain　as　well　as　retrofit　them　by　different　techniques　to　avoid　any　incipient　fault,which　will　lead　to　least　structural　damages　under　earthquake.