In a continuously variable transmission metal belt, a lateral-most projecting portion of a side edge of a metal ring assembly wherein each metal ring is located between a radially central plane and a radially inner peripheral surface of the metal ring. A contact point in which the projecting portion abuts against a V-face of a pulley is closer to the radially central plane than to the radially inner peripheral surface. Moreover, as the metal rings are laminated on one another, recesses are formed between the side edges of the adjacent metal rings to retain oil therein, which lubricates the sliding faces of adjacent metal rings and enhances durability of the assembly.