PURPOSE: To improve strength and durability by arranging magnetic members on a belt body, forming buried sections into the belt body on both sides, and longitudinally forming recessed sections at a distance on the inner periphery surfaces of V-belt sections of the belt body.

CONSTITUTION: A magnetic belt E is constituted by burying a reinforcing magnetic members 20 at a distance in the width direction of a belt body 10 on the outer periphery surface 10b of the belt body 10 formed with multiple V-sections 11 on its inner periphery surface 10a. Buried sections 21 into the belt body 10 are formed on both sides of the individual magnetic members 20 respectively. In addition, recessed sections 12 are longitudinally formed at a distance on the inner periphery side of the V-belt sections 11. In this case, the belt body 10 is molded with a flexible material such as rubber, and longitudinally continuous multiple V-belt sections 11 are formed at a distance in the width direction on its inner periphery surface 10a.