In view of the increasing complexity of the CNC machining process,the thermal errors modeling and error compensation control of the CNC system are increasingly difficult.The challenges faced by traditional modeling methods were analyzed.The opportunities and challenges that the datadriven modeling architecture of “data + algorithm + computing power” was faced in the aspect of intelligence and precision improvement were expounded.Taking datadriven technology as a clue,a review on the research status of the two aspects of numerical control equipment thermal error modeling and error compensation control was launched.Finally,the application prospects of the datadriven algorithms in CNC systems were optimistically predicted.