A corrugated paper blade is a specialized tool for slitting processing of corrugated boards, cutting large-format corrugated paper into required sizes through processes like cutting and creasing to meet the production needs of packaging products such as cartons and boxes, and it comes in various types including circular blades that achieve continuous slitting via high-speed rotation and flat blades that rely on upper-lower shearing action by structure, high-speed steel, cemented carbide, ceramic and other materials suitable for corrugated papers of different thicknesses and textures by material, as well as creasing blades, cut-off blades and other subdivisions by function, with parameters such as blade angle and thickness needing to be adjusted according to corrugated paper characteristics, serving as a key component in corrugated packaging production lines to ensure slitting accuracy, edge quality and production efficiency.