Bending die

The utility model discloses a bending die, relates to the technical field of bending dies, and solves the technical problems that bending adjustment needs to be carried out on steel sheets according to different requirements when bending treatment is carried out on the steel sheets with different specifications at present, and bending treatment cannot be carried out on the steel sheets according to the requirements due to the fact that the bending die cannot be adjusted. Comprising a stamping base, two sleeving supports are fixedly installed at the top of the stamping base and symmetrically distributed with the axis of the stamping base as the center, a hydraulic support is fixedly installed at the tops of the two sleeving supports, a hydraulic cylinder is fixedly connected into the hydraulic support in a sleeving mode, and a stamping plate is fixedly connected to the bottom end of a hydraulic supporting rod in the hydraulic cylinder; by pushing the position of the positioning clamping plate, the stamping die