The reason for the invention of robots is that with the development of society, the social division of labor is becoming more and more detailed. Especially in modern mass production, some people just screw a nut in the same place every day, while others just connect threads all day. People feel alienated constantly, and various occupational diseases begin to occur. So people strongly hope to replace their jobs with some kind of machine. So people developed robots to do those boring, monotonous and dangerous jobs instead of people.

Due to the appearance of robots, some workers lost their original jobs, so some people became hostile to robots. "When robots are hired, people will be fired." Not only in China, but also in some developed countries such as the United States, some people hold this idea. In fact, this kind of worry is unnecessary. Any advanced machinery and equipment will improve labor productivity and product quality, create more social wealth, and will inevitably provide more employment opportunities, which is proved by the history of human production development. The emergence of any new thing has advantages and disadvantages, but the advantages outweigh the disadvantages, which is quickly recognized by people. For example, the appearance of cars not only robbed some rickshaw pullers and porters, but also led to frequent car accidents, posing a threat to human life and property. Although people have seen these shortcomings of the car, it has become an indispensable means of transportation in people's daily life. A well-known British politician said this on the issue of industrial robots: "The number of robots in Japan ranks first in the world, while the number of unemployed people is the least. The number of robots in Britain is the least among developed countries, while the number of unemployed people remains high." This also shows from another side that robots will not rob people of their jobs.