Abstract:As the extension of high-tech manufacturing and the advanced part of modern service industries,high-tech service industry, both innovative and high radioactive, plays a significant role in expanding domestic demand and promoting industrial transformation. An evaluation index system that contains 4 primary indicators and 18 secondary indicators from four perspectives of the basic conditions, industrial structure, innovation input and innovation output is set to maintain regional development level of high-tech service industry. Factor analysis is used to extract main factors, and then improved cluster analysis on the basis of weighted Mahalanobis distance is used to carry out comprehensive evaluation on development level of high-tech services of China’s 31 provinces and cities. The result shows that the development level of high-tech service industry is unbalanced, and there are clear differences in terms of industrial scale level, basic conditions and innovative environment. Then all the provinces can be divided into four layers. Finally, policy proposals are given from the perspectives of government, regional and inter-regional.