The invention discloses a lateral punching reset structure which comprises an upper die assembly, a lower die assembly, a lateral punching assembly and a reset assembly, the upper die assembly comprises an upper die base, an upper padding plate, an upper clamping plate, a stop plate and a stripper plate, and the upper die base, the upper padding plate, the upper clamping plate, the stop plate and the stripper plate are sequentially connected and fixed from top to bottom; the lower die assembly comprises a lower die plate, a lower clamping plate, a lower cushion plate and a lower die base which are sequentially connected and fixed from top to bottom, the lateral punching assembly comprises an upper die slotting tool, a driving base and a lower die slotting tool, and the upper die slotting tool is vertically and fixedly arranged on the upper die assembly. Lateral punching is conducted on a product, after punching is finished and the upper die is reset, the reset assembly elastically pushes the lower die slotting tool to move upwards, the driving base is driven to move leftwards, the punch is driven to move leftwards, automatic reset is achieved, the reset of the punch is stable and rapid, and the working efficiency is improved.