The utility model discloses a flexible clamp which comprises an adapter flange, a clamp bottom plate, a fixed clamping piece, a movable clamping piece and a linear driving mechanism, and the linear driving mechanism is arranged between the fixed clamping piece and the movable clamping piece and comprises a linear guide rail, a sliding block, a push plate and an air cylinder. The utility model further discloses a Baijiu Daqu fresh yeast blank stacking system with the flexible clamp. The utility model discloses a flexible clamp. the fixed side clamping pieces are contacted and positioned with the bottom plane of the fresh yeast blank; a movable side clamping piece is arranged on the linear driving structure; the movable side clamping piece is driven by the linear driving structure to move linearly; the movable side clamping piece is in contact with the side surface of the fresh yeast blank bulge; loosening and clamping of the clamp and the fresh yeast blank are achieved through movementof the movable side clamping piece relative to the fixed side clamping piece, the pressure of input compressed air of the air cylinder is adjusted to a proper value through the pressure adjusting valve, it is guaranteed that the yeast blank is not damaged when the clamping force of the clamp clamps the fresh yeast blank, and automatic taking of the white spirit Daqu fresh yeast blank is achieved.