With the development and application of ultra-high-speed electric spindle technology, CNC machine tool technology has a very important role in the industry, including high-speed cutting, high-speed processing, precision positioning and other modern advanced manufacturing technology has also been developed rapidly. High-speed processing technology for numerical control machine feed drive system to cover high speed, high acceleration requirements. High-precision positioning is required when machining high-precision workpieces. This numerical control machine feed system requirements are also higher and higher.