To improve productivity of an endless belt with a strip member bonded thereto.

This strip member bonded-belt manufacturing device D is provided with a belt driving device D1 for rotating a stretched endless belt, a strip member bonding device D2 for bonding the strip member 16 to the inner peripheral surface of the endless belt B, and a bonding position measuring device D3 arranged downstream in the belt rotating direction Y1 of the strip member bonding device 2, and also arranged in the inner peripheral part of the endless belt B to measure bonding position of the strip member 16 bonded to the inner peripheral surface of the endless belt 16.