A pet buckle includes a hook-shaped buckle body, and a lock rod openable with respect thereto the buckle body having an end portion and a front end, with an opening formed those two the lock rod including a first end hinged to the buckle body through a first rotation shaft, and a second end locked with the front end, a middle part thereof sheathed by a torsional spring, to enclose the opening of the buckle body the end portion including a first and a second anti-trip clips, with the first one fixed to both ends of the first rotation shaft the second clip fixed to both ends of the second rotation shaft a stepped portion and an anti-trip portion engaged with each other formed on the inside of the two clips respectively. With the clips, the lock rod cannot rotate to open the pet buckle occasionally, thereby improving the reliability.
