Chinese　ancient　wooden　buildings　have　good　aseismic　constitutions　to　survive　sorts　of　natural　disasters.　However,　under　earthquakes　damages　still　occur　on　some　of　them.　To　protect　Chinese　ancient　wooden　buildings,　typical　aseismic　constitution　problems　as　well　as　strengthening　methods　of　their　members　were　studied　by　classification　and　statistical　methods.　Based　on　survey　results　on　large　number　of　Chinese　ancient　wooden　buildings,　typical　aseismic　constitution　problems　were　summed　up,　causes　for　the　problems　were　analyzed　and　the　corresponding　strengthening　methods　were　proposed.　By　2　compared　examples,　typical　strengthening　methods　were　further　demonstrated.　Results　show　that　typical　aseismic　constitution　problems　of　Chinese　ancient　wooden　buildings　include　decay　of　column　root,　slack　of　Tou-Kung,　tenon　pulled　out　of　mortise,　cracks　of　beam　and　column　and　so　on;　to　solve　these　problems,　methods　such　as　replacement,　wrap,　connection,　ensemble　and　so　on　are　feasible.　©　(2013)　Trans　Tech　Publications,　Switzerland.