Glasses having a frame for a combined use with a cap which can be attached to the visor of the cap, or when the cap is not worn, can be worn as an ordinary pair of glasses. The glasses having a frame for a combined use with a cap include the main body of glasses having a reinforce unit integrally formed with the glasses, on top of a lens unit to which clips or earpieces are coupled; a central frame which is fixedly coupled to the center of the reinforce unit of the main body of glasses; and a pair of clips and a pair of earpieces that are coupled to both ends of the reinforce unit of the main body of glasses and the central frame, and by doing so, strengthen the coupling power of the clips and the earpieces such that even when the user performs heavy exercise or the shape of the visor of a cap is changed by an external impact, the clips or earpieces are not separated from the main body of glasses and the central frame, and the clips and the earpieces can be easily attached and detached.