To provide a blade driving device in which the bounding of a blade is suppressed, and to provide optical equipment.

The blade driving device 1 is equipped with: a substrate 10 having an aperture 11; the blade 21b moving between a position which is retracted from the aperture 11 and a position which is superposed on at least a part of the aperture 11; and a cushioning member 60 having a loop-like shape, having elasticity, abutting on the blade 21b at an end in a moving range of the blade 21b, and deformed so that the loop-like shape is distorted by abutting on the blade 21b.