Abstract: This paper takes “technical term” of patent literature as basic analysis unit, and goes deeply to the level of patent content analysis. A quantitative description of leading companies’ technology development and industry technology development has been made. Telecommunication patens and its essential patents in resent 24 years have been taken as sample, a similarity comparison between content of leading companies’ technology and industry technology has been carried out, and the relationships between the development of leading companies’ technology development and industry technology development have been revealed. Results indicate that the technology content of leading companies is ahead of industry leading technology of the same period, and it compromise an important part of the forerunner technology of the same period, which provides important technical foundation for the formation of new technological paradigm. In the process of industrial standardization, communication industry leading enterprises participate in standardization work actively and have a large number of standard patents, play a powerful role in promoting the formation of technical standards and technology paradigm.