To provide a connecting structure of a spectacle frame which can be decreased in the number of assembly parts, can be extremely simply assembled and can be greatly improved in production efficiency.

The connecting structure of the spectacle frame constitutes a pair of frame parts which exist symmetrically to the center line and exhibit an annular shape by semi-annular upper frame parts and lower frame parts, a bridge part which exists between the inner ends of both frame parts and mounting parts consisting of upper mounting parts and lower mounting parts respectively existing at the outer ends of the upper frame parts and lower frame parts of the respective frame parts. The upper mounting parts and/or the lower mounting parts are previously integrally provided with endpieces. The tapped holes disposed at one of the upper mounting parts or the lower mounting parts and the tapped insertion holes disposed at the other of the upper mounting parts or the lower mounting parts are aligned and screws are screwed to the tapped holes through the tapped insertion holes and are tightened with prescribed torque, by which the upper mounting parts and the lower mounting parts are directly screwed and connected.