To provide a movable buckle which prevents the neck from being tightened even when a belt portion is hooked by a collar of a pet or the like.A movable buckle is composed of an upper connecting part 1 and a lower connecting part 2 connecting both ends of a belt body 3, and the upper connecting part 1 is constituted by a stopping plate 11, an introducing unit 12 at the front end of the stopping plate, A clamping unit 13,The sandwiching unit covers the first plate member 131, the second plate member 132, the first plate member and the second plate member into which one end of the belt member is inserted, with the interval at which one end of the belt member 3 is inserted and clamped And a fixing part 134 which is made of a detachable part 133 to be fastened and which is inserted through and fastened to the second plate and the first plate, and the lower connecting part 2 comprises a main body unit 21 to be attached to and detached from the introduction unit 12 of the upper connecting part The other end of the belt body is fastened to the rear end.BACKGROUND OF THE INVENTION【課題】ペットの首輪等でベルト部分が引掛けても頸部が締まることを防止する可動バックルの提供。【解決手段】可動バックルは、ベルト体3両端を接続する上接続部1及び下接続部2からなり、上接続部1は、停止板11、停止板前端の導入ユニット12及び停止板後端の挟持ユニット13を備え、該挟持ユニットは、ベルト体3の一端を挿入して挟持する間隔を設けた第一板体131、第二板体132、ベルト体一端を挿入した第一板体と第二板体を覆って締結する取外し部品133からなり、第二板体と第一板体に挿通して締結する固定部品134を備え、下接続部2は、前記上接続部の導入ユニット12と着脱する本体ユニット21を備え、後端にベルト体他端を締結する。【選択図】図1