数控加工有下列优点：
①大量减少工装数量，加工形状复杂的零件不需要复杂的工装。如要改变零件的形状和尺寸，只需要修改零件加工程序，适用于新产品研制和改型。
②加工质量稳定，加工精度高，重复精度高，适应飞行器的加工要求。
③多品种、小批量生产情况下生产效率较高，能减少生产准备、机床调整和工序检验的时间，而且由于使用比较佳切削量而减少了切削时间。
④可加工常规方法难于加工的复杂型面，甚至能加工一些无法观测的加工部位。
数控加工的缺点是机床设备费用昂贵，要求维修人员具有较高水平。

CNC machining has the following advantages:
The quantity of workmanship is greatly reduced, and the processing of complex shapes does not require complex workmanship. If you want to change the shape and size of the parts, you only need to modify the parts processing program and apply it to new product development and modification.
2 The processing quality is stable, the processing precision is high, the repetition precision is high, adapts the processing requirement of the aircraft.
3 Production efficiency is higher in multi-variety and small batch production, which can reduce production preparation, machine tool adjustment and process inspection time, and reduce cutting time due to the use of optimal cutting quantity.
4 The complex surface that can be processed by conventional methods is difficult to process, and even some unobservable processing parts can be processed.
The disadvantage of NC machining is that machine tool equipment is expensive and requires maintenance personnel to have a high level.