High processing accuracy and stable processing quality; Can perform multi coordinate linkage and process complex shaped parts; When processing parts, it is generally only necessary to change the CNC program, which can save production preparation time; The machine tool itself has high precision and rigidity, and can choose favorable processing quantities, resulting in high productivity (generally 3-5 times that of ordinary machine tools); The high degree of automation of machine tools can reduce labor intensity; The quality requirements for operators are higher, and the technical requirements for maintenance personnel are higher.