The invention discloses a sheet hardware cutting device for hardware electromechanical. The sheet hardware cutting device for the hardware electromechanical comprises a box body, wherein four cornersat the bottom of the box body are provided with rollers, the front face of the box body is hinged with a door body through a hinge shaft, a control panel is installed at the center of the front face of the door body, the left and right side walls at the top of the box body are symmetrically provided with conduits, sliding cavities are formed in the outer walls of the conduits, a fixed seat is installed at the top of the box body, the two ends of the top of the fixed seat are provided with electric sliding rails, and sliding bars are slidingly installed in the electric sliding rails. Accordingto the invention, the sheet hardware to be cut is placed above a worktable, a turntable is rotated so that the turntable drives a baffle to move, the baffle drives a splint to approach the hardware until the hardware is fixed and clamped by the splint, the hardware is convenient to fix, displacement during cutting is avoided, under the action of a positioning spring, the splint has a certain buffer force on the hardware, and the hardware is avoided to be pinched.