Innovation mainly includes knowledge innovation and technology innovation. In the current study, information innovation is an attribute of thesis data and technological innovation is based on proprietary data. Industrial robots have a high level of capability and high density technology. Therefore, knowledge and technological innovation are very active in this field. The development of manufacturing industry in China is facing labor shortage. An effective way to solve this problem is to innovate, renew and modernize the manufacturing industry. Since the reform and opening up, China’s manufacturing industry has made significant progress in industrial production in terms of machinery, standardization, automation, and information technology, but at the cost of cheap labor, a huge consumer market, and national policy orientation. At the same time, compared with western industrialized countries such as Japan, Germany and the United States, China’s manufacturing industry as a whole is not “strong”, which is mainly reflected in the fact that the development of nuclear technology has not yet begun and manufacturing enterprises do not have the ability of independent innovation. Therefore, this paper is an in-depth study of the mechanical design method and joint simulation analysis of industrial robots based on trajectory planning algorithm and kinematics.