Based　on　experiments　of　five　moment-resisting　beam-column　connections　under　cyclic　loading,　this　paper　investigate　the　failure　pattern,　hysteresis　loop　curves,　displacement-restoring　capacity,　displacement　ductility　and　dissipation　energy　capability　of　the　precast-prestressed　beam-to-column　concrete　connections　with　unbonded　tendons.　and　the　studied　results　show　that　the　damaged　degree　of　the　precast-prestressed　beam-to-column　concrete　connections　with　unbonded　tendons　is　less　than　that　of　the　conventional　cast-in-place　concrete　connections　when　both　of　them　are　in　the　same　displacement.　It　is　confirmed　that　the　performance　is　equal　or　superior　to　that　of　a　conventional　connection　in　terms　of　ductility　and　displacement-restoring　capacity.