Beijing is an important area for basic research activities in China. In the past ten years，Beijing’s intramural expenditure of basic research has grown rapidly. In 2020，Beijing’s intramural expenditure of basic research is more than a quarter of the nation. And it has approached or even exceeded the level of some developed countries. The grey relation analysis on technological progress shows four conclusions. Firstly，the impact of basic research is less than applied research and experimental development. Secondly，the impact of higher education basic research is slightly greater than the R&D institutions. Thirdly，the impact of R&D personnel is greater than R&D intramural expenditure. Fourthly，the impact of direct output of basic research is slightly greater than the input. To strengthen the basic research in Beijing，we should increase the proportion of basic research expenditure in higher education，speed up the training of basic research personnel，and incentive enterprises to carry out applied basic research.