Abstract:The science and technology service industry is an important driving force to boost the high-quality development of China's economy, and it is important to explore the influencing factors and impact effects of the science and technology service industry to boost the high-quality development of the economy. The index system of high-quality economic development is constructed with the five development concepts as the basic dimensions, and the index system of science and technology service industry is constructed from the three dimensions of input, environment and output, and the relevant data from 2012 to 2019 are used to analyze the influencing factors of science and technology service industry contributing to high-quality economic development by using GRA model, and the CRITIC weight method is used to construct the science and technology service industry contributing to high-quality economic development The study investigated the boosting effect of the three dimensions of the science and technology service industry and its change trend. The research results show that: the correlation between the indicators of science and technology service industry and the indicators of high quality economic development is strong, and the science and technology service industry has a good boosting effect on the high quality economic development; the boosting effect of science and technology service industry on the high quality economic development of China is increasing, and the change trend of the comprehensive boosting effect index is highly consistent with the input boosting effect index, and the input boosting effect index is the core indicator to promote the positive growth of the comprehensive boosting effect index. The input boost index is the core indicator for the positive growth of the comprehensive boost index, and the environmental boost index and output boost index are the basic indicators for the stable change of the comprehensive boost index. The research findings are combined to propose an optimization path to further enhance the capability and effect of the science and technology service industry to contribute to the high-quality development of China's economy.