The important position and great benefits of CNC technology and CNC machine tools in today's machinery manufacturing industry show their strategic role in the modernization of national basic industries, and become an important means and symbol for the upgrading and transformation of traditional machinery manufacturing industry and the realization of automation, flexibility and integrated production. The wide application of numerical control technology and numerical control machine tools has brought revolutionary changes to the industrial structure, product types and grades and production methods of machinery manufacturing industry. CNC machine tool is the most important equipment in modern machining workshop. Its development is the result of the combination of information technology (1T) and manufacturing technology (MT). Modern CAD/CAM, FMS, CIMS, agile manufacturing and intelligent manufacturing technologies are all based on numerical control technology. It is very important for students majoring in modern electromechanical technology to master the knowledge of modern numerical control technology. Numerical control technology and equipment are the important foundation of manufacturing modernization. Whether this foundation is solid or not directly affects a country's economic development and comprehensive national strength, and is related to a country's strategic position. Therefore, all industrialized countries in the world have taken great measures to develop their own numerical control technology and industry. In China, the development of numerical control technology and equipment has also been highly valued, and great progress has been made in recent years. Especially in the field of general microcomputer numerical control, the domestic numerical control system based on PC platform has been in the forefront of the world. However, there are many problems in China's numerical control technology research and industrial development, especially in technological innovation ability, commercialization process and market share. When the new century comes, how to effectively solve these problems, make China's numerical control field step into the world's advanced ranks along the road of sustainable development, and make us play a decisive role in international competition will be an important task for numerical control R&D departments and manufacturers. In order to accomplish this task, we must first establish a development path that conforms to China's national conditions. Therefore, this paper discusses the development path of the new century from two aspects: overall strategy and technical route, as well as numerical control system, functional components and numerical control machine tools. 1 overall strategy it is very important for the development of numerical control technology and industry in China in the 2 1 century to formulate an overall development strategy that conforms to China's national conditions. Through the analysis of the development trend of numerical control technology and industry, and the research on the problems existing in the field of numerical control in China, we believe that the overall strategy of developing numerical control technology and industry in line with China's national conditions will be to take scientific and technological innovation as the guide, commercialization as the main task, management and marketing as the focus, and technical support and service as the backing. 1. 1 Guided by scientific and technological innovation, China's numerical control technology and industry have made great progress after more than 40 years of development, from scratch, from importing and digesting to having their own independent copyright. But looking back on the development of these decades, we can see that our progress in the field of numerical control is mainly based on some foreign models and developed step by step, and there are not many truly innovative components. This situation is understandable in the early stage of development. However, in the new century when the world's numerical control experts are like Lin, and the knowledge economy is about to enter the stage, this conventional approach is difficult to work. For example, when the analog servo abroad is going out of date, we started to engage in analog servo, but the market has not stabilized and the technology has fallen behind; When pulse-driven digital servo was introduced into China market abroad, we also followed this so-called digital servo, but it has not formed a large market scale so far; Recently, when developing digital servo abroad, it is connected with numerical control equipment through network (through optical cable, etc.). ), we also follow the trend to develop such a system, and the future is still not optimistic. It is inevitable that the domestic CNC system will be developed according to the existing control and drive modes abroad. In addition, foreign companies set up research institutes and production plants in China, and carry out local development, local production and local sales, which makes our products less and less advantageous in terms of cost performance. Therefore, it is naturally very difficult to further expand market share. In order to change this situation, we must deeply understand and conscientiously implement the great assertion that "science and technology are the primary productive forces", vigorously strengthen scientific and technological innovation in the field of numerical control, strive to study practical advanced numerical control technology with China characteristics, and gradually establish our own independent advanced technology system. On this basis, we will vigorously develop CNC products in line with China's national conditions, thus forming a complete industrial system from CNC systems, CNC functional components to a full range of CNC machine tools. In this way, we will not be led by foreign countries and restricted by others forever, and it is possible to recover the domestic market and open the international market with advanced and practical CNC products, so that China's CNC technology and CNC industry will be at the forefront of the world in 2 1 century. 1.2 Work hard on commercialization. Although China's numerical control products have developed rapidly in recent years, there are few people who really stand on the market. As far as numerical control system is concerned, domestic products have not really been accepted by the vast number of machine tool factories, so there are many examples of domestic numerical control systems used in the transformation of old machine tools, but they are rarely used in new machine tools. Most of the domestic CNC machine tools produced by machine tool factory adopt foreign systems. Of course, this does not mean that the numerical control transformation of old machine tools is not important, but that there is still a considerable gap between our numerical control system and foreign countries from the perspective of goods. In addition to technical performance and function, reliability, stability and practicality are the main factors affecting the commercialization of CNC systems and CNC machine tools. In the past, some R&D departments of CNC technology and products often pursued some technical indicators (such as how many channels, how many axes are linked, how many meters per minute feed rate, etc.). ), but pay little attention to some indicators and some small problems that affect practicality, and spend relatively little energy on product stability, robustness, reliability and practicality. Therefore, some products are highly appraised and even won various awards. However, these high-index and high-performance products, because of some minor problems, were unsatisfactory, and finally lost their credibility and could not open the market. This shows that the prototype product with high index and high performance is far from the practical and reliable product that users really need, and it still needs a lot of efforts to turn a product with high index and high performance into a marketable product. On the other hand, CNC systems and CNC machine tools are not as easy to mass-produce as household appliances, and the application environment is not so simple. When CNC products are used in production environment, they are faced with various technical problems. If the development department can't grasp these problems thoroughly, it will be difficult to design the products perfectly. Moreover, some problems of CNC products are difficult to find in development, trial and even identification. Therefore, the same type of CNC machine tools run well in some users, but not well in others. Or the same type of CNC machine tools have a good processing effect on some parts, but the processing of other parts is not satisfactory. This situation is sometimes caused by the user's operator level, but sometimes it is the exposure of potential problems of CNC products themselves. In order to solve this problem, some foreign companies set up special institutions to test their products. For example, in order to test the newly developed CNC system, manufacturers have collected a large number of parts programs from production practice, and let the CNC system run various programs. Once problems are found, they will immediately feed back to the development department to solve them. After such a test process, the potential problems of CNC system are greatly reduced. In the past, our products rarely passed such strict and comprehensive self-inspection. Many questions have to be picked out by users. In this way, even a small problem will seriously affect the reputation of domestic CNC products. Therefore, we should pay full attention to the above problems, make great efforts in commercialization, and regard it as the backbone of the numerical control industry, which runs through the whole process of technical research, product development, trial production and production, so that our existing numerical control products with high technical level can become good goods with real market.