The numerical control equipment in the 21st century will be an intelligent system. The contents of intellectualization include all aspects in the CNC system: in order to pursue the intellectualization of machining efficiency and quality, such as adaptive control of machining process, automatic generation of process parameters; In order to improve the drive performance and use the intelligence of connection, such as feedforward control, adaptive calculation of motor parameters, automatic identification of load, automatic selection of model, self-tuning, etc.