This　paper　presents　the　results　of　a　study　on　seismic　performance　of　mortise-tenon　joints　with　different　lengths　that　tenons　pull　out　of　joints.　Three　1:3.52　scaled　mortise-tenon　joint　specimens　were　fabricated:　one　with　through-tenon　joints,　one　with　half-tenon　joints,　and　one　with　dovetail　joints.　Seismic　data　of　the　joints,　such　as　hysteretic　curves,　skeleton　curves,　stiffness　degradation　rules,　and　energy　dissipation　capacity　curves,　were　obtained　by　low-cycle　reversed　loading　test.　The　influence　of　lengths　that　tenons　pull　out　of　joints　on　the　mortise-tenon　joints　was　analyzed.　The　seismic　performance　of　three　types　of　mortise-tenon　joints　was　compared.　The　results　showed　that　all　hysteretic　loops　are　z　shaped.　The　seismic　performance　of　the　through　joint　was　the　best　among　three　types　of　mortise　tenon　joint.　The　length　that　the　tenon　pulls　out　of　the　joint　significantly　affected　the　performance　of　the　mortise　and　tenon　joints.