Abstract: Studying the impact of China's patent protection intensity on the development of high-tech industries is of great significance for customers to view the level of Chinese patent protection. When measuring the strength of patent protection, combined with the strength of patent legislation protection and the intensity of law enforcement protection; the index of law enforcement protection intensity includes the number of patent agents, the rate of patent infringement administrative cases, the patent infringement judicial award rate, and the number of patent applications per capita, so that The evaluation indicator system is more scientific and practical. The analysis of multiple regression models was carried out step by step. It was found that the improvement of patent protection intensity in the linear regression model can effectively explain the improvement of the development level of high-tech industries. In the multiple linear regression model, the strength of patent protection in China is high-tech industry development. The impact is weakened and cannot even have a significant impact. The reason may be that the enforcement of patents in China still needs further improvement, especially in the area of judicial infringement. The calculation of patent protection intensity needs to be targeted and scientific. The protection intensity of patent legislation in China has reached a high level, but the level of law enforcement protection needs to be further improved.