To provide a connecting structure between lens frames and bridge by which lens frames and a bridge can be surely assembled without being welded, the labor and time necessary for assembling are saved, the manufacturing efficiency can be improved and assembly of high quality can be always obtained without relying on a skilled worker.

The connecting structure between lens frames and bridge is a structure for connecting a pair of left and right lens frames for holding the lens positioned with a prescribed interval and a bridge disposed between inner ends of both lens frames in a spectacle frame. The structure is distinguished by screw locking respective inner ends of both lens frames and both ends of the bridge by a screw locking means composed of a male screw and a female screw to enable the lens frames and the bridge to be assembled by being integrally connected.