In the process of precision slitting machine blade processing, the high-precision tool with high-speed slitting machine forms a fast processing channel, which brings a very fast production speed for enterprises. It's just relative processing speed. It needs to be equipped with tools with good precision and finish to obtain uniform speed. The precision of machine tools, tools and fixtures is very important. At present, the fixture error value of fixed tool is less than 0.03mm, and the error value of the tool is required to be higher, so that the processed material can be processed quickly under a certain cutting pressure, and the surface burr and other bad effects can be achieved. In order to obtain a higher level of accuracy of slitter blade, it is very important to master the grinding process, and the choice of abrasive should have viscoelastic, flexible and cutting semi-solid grinding wheel, different viscosity, grinding sand type, abrasive size, also can process different finish effect. Now, silicon carbide, cubic boron nitride and aluminum oxide are the main grinding wheels for slitter blade grinding. These grinding wheels can be used to grind the surface and surface of the cutting tool evenly, which can produce minimal grinding heat, avoid the tool deformation and annealing caused by too high grinding temperature, so as to ensure the quality and processing speed of the cutting tool. In order to finish the grinding of slitter blade more smoothly and get the best finish effect, the enterprise summarizes many factors that affect the quality of the tool according to the experience of other enterprises. In addition to the equipment reasons, the enterprise also trains a group of experienced operators and designs suitable grinding fixture to achieve the purpose of fine grinding and ensure the processing accuracy of slitter blade Stability and sharpness. At present, in view of the increasingly high application range of slitting machine, various light industry, packaging, decoration and other industries are inseparable from slitting machine and cutting tools. In order to expand the market of cutting tool industry, it will become another bright spot of industrial development.