A blood pressure information measurement device cuff includes a fluid bladder, an outer cover, a first loop-shaped ring, and a second loop-shaped ring. The first loop-shaped ring is provided closer to one end portion of the outer cover than the position where the fluid bladder is located, and has an insertion hole for passing through and bending back another end portion of the outer cover. The second loop-shaped ring is provided on a front surface of the outer cover, and has an insertion hole for passing through the other end portion of the outer cover that has been passed through the first loop-shaped ring. According to the blood pressure information measurement device cuff, it is possible to repeatedly recreate the same fitted state with ease when the cuff is fitted to a measurement area.