The Huaxia sheet metal shearing machinery adopts a three-point rolling guide operation without resistance, the shearing angle is adjustable within a specific range. Multi-step programming is available for automatic operation and consistent positioning of the rear stopper, assisting the rear stopper in automatic, accurate adjustment of position. Meanwhile, it is available in “One-button” operation, “breaking point” and displaying of processing track. Currently, this sheet metal shearing machine is ideal for cutting and processing of metal sheets.