The　wooden　columns　in　timber　structures　of　ancient　buildings　have　column　foot　tenons　of　various　sizes.　The　main　reason　for　these　differences　is　their　use　for　different　roof　loads.　Six　full-scale　specimens　with　different　sizes　of　column　foot　tenon　were　designed　and　manufactured.　The　tree　species　used　for　the　specimens　was　larch.　The　quasi-static　test　was　conducted　on　the　specimens　that　were　used　in　timber　structures　of　ancient　buildings.　The　effects　of　column　foot　tenon　size　on　the　mechanical　properties　of　larch　wooden　columns　were　studied.　The　moment-rotational　angle　hysteretic　curves,　moment-rotational　angle　skeleton　curves,　ductility,　stiffness　degradation,　energy　dissipation　capacity,　slippages　between　the　wooden　column　and　the　plinth,　and　the　damage　of　the　column　foot　tenons　were　examined.　The　test　results　showed　that　the　column　foot　tenon　played　an　important　role　in　the　mechanical　behavior　of　the　wooden　column　under　low-cycle　reversed　cyclic　loading.　The　rotation　of　the　column　foot　tenon　improved　the　energy　dissipation　capacity　of　the　wooden　column.　As　the　rotational　angle　of　the　column　base　increased,　the　column　foot　tenon　had　different　degrees　of　damage.　Different　sizes　of　column　foot　tenon　had　their　own　advantages　and　hysteretic　behavior.