Buckle for swimming goggles

The invention discloses a buckle for swimming goggles. The buckle comprises an edge buckle body, a roller and head belts. A hollow installation column is integrally formed at one ends of the head belts. The roller is sleeved with the hollow installation column. The ends, provided with the hollow installation column, of the head belts penetrate from a head belt hole in one side of the swimming goggles from outside to inside and then are folded back, the roller is rotationally connected between the top wall and the bottom wall of the edge buckle body, and the hollow installation column is semi-wrapped in the head belts on the edge buckle body. Accordingly, the tightness degree of the head belts can be quickly adjusted by moving the edge buckle body. The hollow installation column is semi-wrapped in the head belts penetrating through the edge buckle body, the head belts are folded in half and assembled in an overlapped mode, and therefore friction between the head belts can be increased, and a good anti-slip effect is achieved.